1 dnl Autoconf script for GNU Emacs
2 dnl To rebuild the `configure' script from this, execute the command
4 dnl in the directory containing this script.
5 dnl If you changed any AC_DEFINES, also run autoheader.
7 dnl Copyright (C) 1994-1996, 1999-2014 Free Software Foundation, Inc.
9 dnl This file is part of GNU Emacs.
11 dnl GNU Emacs is free software: you can redistribute it and/or modify
12 dnl it under the terms of the GNU General Public License as published by
13 dnl the Free Software Foundation, either version 3 of the License, or
14 dnl (at your option) any later version.
16 dnl GNU Emacs is distributed in the hope that it will be useful,
17 dnl but WITHOUT ANY WARRANTY; without even the implied warranty of
18 dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
19 dnl GNU General Public License for more details.
21 dnl You should have received a copy of the GNU General Public License
22 dnl along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>.
25 dnl Note this is parsed by (at least) make-dist and lisp/cedet/ede/emacs.el.
26 AC_INIT(GNU Emacs, 25.0.50, bug-gnu-emacs@gnu.org)
28 dnl Set emacs_config_options to the options of 'configure', quoted for the shell,
29 dnl and then quoted again for a C string. Separate options with spaces.
30 dnl Add some environment variables, if they were passed via the environment
31 dnl rather than on the command-line.
34 dnl This is the documented way to record the args passed to configure,
35 dnl rather than $ac_configure_args.
36 for opt in ${1+"$@"} CFLAGS CPPFLAGS LDFLAGS; do
38 -n | --no-create | --no-recursion)
40 CFLAGS | CPPFLAGS | LDFLAGS)
41 eval 'test "${'$opt'+set}" = set' || continue
43 *" $opt="*) continue ;;
45 eval opt=$opt=\$$opt ;;
48 emacs_shell_specials=$IFS\''"#$&()*;<>?@<:@\\`{|~'
50 *[["$emacs_shell_specials"]]*)
53 emacs_quote_apostrophes="s/'/'\\\\''/g"
54 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_apostrophes"` ;;
59 emacs_quote_for_c='s/[["\\]]/\\&/g; $!s/$/\\n\\/'
60 opt=`AS_ECHO(["$opt"]) | sed "$emacs_quote_for_c"` ;;
63 AS_VAR_APPEND([emacs_config_options], ["$optsep$opt"])
67 AC_CONFIG_HEADERS(src/config.h:src/config.in)
68 AC_CONFIG_SRCDIR(src/lisp.h)
69 AC_CONFIG_AUX_DIR(build-aux)
70 dnl automake 1.13 and later understand this, making -I m4 unnecessary.
71 dnl With older versions this is a no-op.
72 AC_CONFIG_MACRO_DIR(m4)
75 AC_CHECK_PROGS(XCRUN, [xcrun])
76 if test -n "$XCRUN"; then
77 if test -z "$MAKE"; then
78 dnl Call the variable MAKE_PROG, not MAKE, to avoid confusion with
79 dnl the usual MAKE variable that 'make' itself uses.
80 AC_CHECK_PROG([MAKE_PROG], [make], [yes])
81 if test -z "$MAKE_PROG"; then
84 xcsdkdir=`$XCRUN --show-sdk-path 2>/dev/null`
89 dnl GNU Make is required, so don't test for its individual features.
90 am_cv_make_support_nested_variables=yes
91 AC_DEFUN([AC_PROG_MAKE_SET],
93 AC_SUBST([SET_MAKE])])
95 dnl Check for GNU Make and possibly set MAKE before running AM_INIT_AUTOMAKE.
96 [emacs_check_gnu_make ()
98 emacs_makeout=`($1 --version) 2>/dev/null` &&
99 case $emacs_makeout in
100 'GNU Make '3.8[1-9]* | 'GNU Make '3.9[0-9]* | \
101 'GNU Make '3.[1-9][0-9][0-9]* | 'GNU Make '[4-9]* | 'GNU Make '[1-9][0-9]* )
102 ac_path_MAKE_found=:;;
105 AC_CACHE_CHECK([for GNU Make], [ac_cv_path_MAKE],
106 [ac_path_MAKE_found=false
107 if test -n "$MAKE"; then
108 emacs_check_gnu_make "$MAKE"
109 ac_cv_path_MAKE=$MAKE
111 emacs_tried_make=false
112 emacs_tried_gmake=false
113 emacs_tried_gnumake=false
114 AC_PATH_PROGS_FEATURE_CHECK([MAKE], [make gmake gnumake],
115 [[emacs_check_gnu_make "$ac_path_MAKE"
116 if $ac_path_MAKE_found; then
117 # Use the fully-qualified program name only if the basename
118 # would not resolve to it.
119 if eval \$emacs_tried_$ac_prog; then
120 ac_cv_path_MAKE=$ac_path_MAKE
122 ac_cv_path_MAKE=$ac_prog
125 eval emacs_tried_$ac_prog=:]])
127 $ac_path_MAKE_found || {
128 AC_MSG_ERROR([[Building Emacs requires GNU Make, at least version 3.81.
129 If you have it installed under another name, configure with 'MAKE=...'.
130 For example, run '$0 MAKE=gnu-make'.]])
132 MAKE=$ac_cv_path_MAKE
135 dnl Fairly arbitrary, older versions might work too.
136 AM_INIT_AUTOMAKE(1.11)
138 dnl Canonicalize the configuration name.
141 configuration=${host_alias-${build_alias-$host}}
143 dnl We get MINGW64 with MSYS2, MINGW32 with MSYS.
146 . $srcdir/nt/mingw-cfg.site
150 # srcdir is an absolute path. In this case, force the format
151 # "/c/foo/bar", to simplify later conversions to native Windows
152 # format ("c:/foo/bar").
153 srcdir=`cd "${srcdir}" && pwd -W`
154 # 'eval' pacifies strict POSIX non-MinGW shells (Bug#18612).
155 eval 'srcdir="/${srcdir:0:1}${srcdir:2}"'
160 dnl Support for --program-prefix, --program-suffix and
161 dnl --program-transform-name options
164 dnl It is important that variables on the RHS not be expanded here,
165 dnl hence the single quotes. This is per the GNU coding standards, see
166 dnl (autoconf) Installation Directory Variables
167 dnl See also epaths.h below.
168 lispdir='${datadir}/emacs/${version}/lisp'
169 standardlisppath='${lispdir}'
170 locallisppath='${datadir}/emacs/${version}/site-lisp:'\
171 '${datadir}/emacs/site-lisp'
172 lisppath='${locallisppath}:${standardlisppath}'
173 etcdir='${datadir}/emacs/${version}/etc'
174 archlibdir='${libexecdir}/emacs/${version}/${configuration}'
175 etcdocdir='${datadir}/emacs/${version}/etc'
176 gamedir='${localstatedir}/games/emacs'
178 dnl Special option to disable the most of other options.
180 [AS_HELP_STRING([--without-all],
181 [omit almost all features and build
182 small executable with minimal dependencies])],
183 [with_features=$withval],
186 dnl OPTION_DEFAULT_OFF(NAME, HELP-STRING)
187 dnl Create a new --with option that defaults to being disabled.
188 dnl NAME is the base name of the option. The shell variable with_NAME
189 dnl will be set to either the user's value (if the option is
190 dnl specified; 'yes' for a plain --with-NAME) or to 'no' (if the
191 dnl option is not specified). Note that the shell variable name is
192 dnl constructed as autoconf does, by replacing non-alphanumeric
193 dnl characters with "_".
194 dnl HELP-STRING is the help text for the option.
195 AC_DEFUN([OPTION_DEFAULT_OFF], [dnl
196 AC_ARG_WITH([$1],[AS_HELP_STRING([--with-$1],[$2])],[],[dnl
197 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=no])dnl
200 dnl OPTION_DEFAULT_ON(NAME, HELP-STRING)
201 dnl Create a new --with option that defaults to $with_features.
202 dnl NAME is the base name of the option. The shell variable with_NAME
203 dnl will be set either to 'no' (for a plain --without-NAME) or to
204 dnl 'yes' (if the option is not specified). Note that the shell
205 dnl variable name is constructed as autoconf does, by replacing
206 dnl non-alphanumeric characters with "_".
207 dnl HELP-STRING is the help text for the option.
208 AC_DEFUN([OPTION_DEFAULT_ON], [dnl
209 AC_ARG_WITH([$1],[AS_HELP_STRING([--without-$1],[$2])],[],[dnl
210 m4_bpatsubst([with_$1], [[^0-9a-z]], [_])=$with_features])dnl
213 OPTION_DEFAULT_ON([pop],[don't support POP mail retrieval with movemail])
214 if test "$with_pop" = yes; then
215 AC_DEFINE(MAIL_USE_POP)
217 AH_TEMPLATE(MAIL_USE_POP, [Define to support POP mail retrieval.])dnl
219 OPTION_DEFAULT_OFF([kerberos],[support Kerberos-authenticated POP])
220 if test "$with_kerberos" != no; then
223 AH_TEMPLATE(KERBEROS,
224 [Define to support Kerberos-authenticated POP mail retrieval.])dnl
226 OPTION_DEFAULT_OFF([kerberos5],[support Kerberos version 5 authenticated POP])
227 if test "${with_kerberos5}" != no; then
228 if test "${with_kerberos}" = no; then
232 AC_DEFINE(KERBEROS5, 1, [Define to use Kerberos 5 instead of Kerberos 4.])
235 OPTION_DEFAULT_OFF([hesiod],[support Hesiod to get the POP server host])
236 dnl FIXME hesiod support may not be present, so it seems like an error
237 dnl to define, or at least use, this unconditionally.
238 if test "$with_hesiod" != no; then
239 AC_DEFINE(HESIOD, 1, [Define to support using a Hesiod database to find the POP server.])
242 OPTION_DEFAULT_OFF([mmdf],[support MMDF mailboxes])
243 if test "$with_mmdf" != no; then
244 AC_DEFINE(MAIL_USE_MMDF, 1, [Define to support MMDF mailboxes in movemail.])
247 OPTION_DEFAULT_OFF([mail-unlink],[unlink, rather than empty, mail spool after reading])
248 if test "$with_mail_unlink" != no; then
249 AC_DEFINE(MAIL_UNLINK_SPOOL, 1, [Define to unlink, rather than empty, mail spool after reading.])
252 AC_ARG_WITH([mailhost],[AS_HELP_STRING([--with-mailhost=HOSTNAME],
253 [string giving default POP mail host])],
254 AC_DEFINE_UNQUOTED(MAILHOST, ["$withval"], [String giving fallback POP mail host.]))
256 AC_ARG_WITH([sound],[AS_HELP_STRING([--with-sound=VALUE],
257 [compile with sound support (VALUE one of: yes, alsa, oss, bsd-ossaudio, no;
258 default yes). Only for GNU/Linux, FreeBSD, NetBSD, MinGW, Cygwin.])],
259 [ case "${withval}" in
260 yes|no|alsa|oss|bsd-ossaudio) val=$withval ;;
261 *) AC_MSG_ERROR([`--with-sound=$withval' is invalid;
262 this option's value should be `yes', `no', `alsa', `oss', or `bsd-ossaudio'.])
267 [with_sound=$with_features])
269 dnl FIXME currently it is not the last.
270 dnl This should be the last --with option, because --with-x is
271 dnl added later on when we find the file name of X, and it's best to
272 dnl keep them together visually.
273 AC_ARG_WITH([x-toolkit],[AS_HELP_STRING([--with-x-toolkit=KIT],
274 [use an X toolkit (KIT one of: yes or gtk, gtk2, gtk3, lucid or athena, motif, no)])],
275 [ case "${withval}" in
276 y | ye | yes ) val=gtk ;;
278 l | lu | luc | luci | lucid ) val=lucid ;;
279 a | at | ath | athe | athen | athena ) val=athena ;;
280 m | mo | mot | moti | motif ) val=motif ;;
281 g | gt | gtk ) val=gtk ;;
285 AC_MSG_ERROR([`--with-x-toolkit=$withval' is invalid;
286 this option's value should be `yes', `no', `lucid', `athena', `motif', `gtk',
287 `gtk2' or `gtk3'. `yes' and `gtk' are synonyms.
288 `athena' and `lucid' are synonyms.])
294 OPTION_DEFAULT_OFF([wide-int], [prefer wide Emacs integers (typically 62-bit)])
295 if test "$with_wide_int" = yes; then
296 AC_DEFINE([WIDE_EMACS_INT], 1, [Use long long for EMACS_INT if available.])
299 dnl _ON results in a '--without' option in the --help output, so
300 dnl the help text should refer to "don't compile", etc.
301 with_xpm_set=${with_xpm+set}
302 OPTION_DEFAULT_ON([xpm],[don't compile with XPM image support])
303 OPTION_DEFAULT_ON([jpeg],[don't compile with JPEG image support])
304 OPTION_DEFAULT_ON([tiff],[don't compile with TIFF image support])
305 OPTION_DEFAULT_ON([gif],[don't compile with GIF image support])
306 OPTION_DEFAULT_ON([png],[don't compile with PNG image support])
307 OPTION_DEFAULT_ON([rsvg],[don't compile with SVG image support])
308 OPTION_DEFAULT_ON([xml2],[don't compile with XML parsing support])
309 OPTION_DEFAULT_ON([imagemagick],[don't compile with ImageMagick image support])
311 OPTION_DEFAULT_ON([xft],[don't use XFT for anti aliased fonts])
312 OPTION_DEFAULT_ON([libotf],[don't use libotf for OpenType font support])
313 OPTION_DEFAULT_ON([m17n-flt],[don't use m17n-flt for text shaping])
315 OPTION_DEFAULT_ON([toolkit-scroll-bars],[don't use Motif or Xaw3d scroll bars])
316 OPTION_DEFAULT_ON([xaw3d],[don't use Xaw3d])
317 OPTION_DEFAULT_ON([xim],[don't use X11 XIM])
318 OPTION_DEFAULT_OFF([ns],[use NeXTstep (Cocoa or GNUstep) windowing system])
319 OPTION_DEFAULT_OFF([w32], [use native MS Windows GUI in a Cygwin build])
321 OPTION_DEFAULT_ON([gpm],[don't use -lgpm for mouse support on a GNU/Linux console])
322 OPTION_DEFAULT_ON([dbus],[don't compile with D-Bus support])
323 OPTION_DEFAULT_ON([gconf],[don't compile with GConf support])
324 OPTION_DEFAULT_ON([gsettings],[don't compile with GSettings support])
325 OPTION_DEFAULT_ON([selinux],[don't compile with SELinux support])
326 OPTION_DEFAULT_ON([gnutls],[don't use -lgnutls for SSL/TLS support])
327 OPTION_DEFAULT_ON([zlib],[don't compile with zlib decompression support])
329 AC_ARG_WITH([file-notification],[AS_HELP_STRING([--with-file-notification=LIB],
330 [use a file notification library (LIB one of: yes, gfile, inotify, w32, no)])],
331 [ case "${withval}" in
332 y | ye | yes ) val=yes ;;
334 g | gf | gfi | gfil | gfile ) val=gfile ;;
335 i | in | ino | inot | inoti | inotif | inotify ) val=inotify ;;
336 w | w3 | w32 ) val=w32 ;;
337 * ) AC_MSG_ERROR([`--with-file-notification=$withval' is invalid;
338 this option's value should be `yes', `no', `gfile', `inotify' or `w32'.
339 `yes' is a synonym for `w32' on MS-Windows, for `no' on Nextstep,
340 otherwise for the first of `gfile' or `inotify' that is usable.])
343 with_file_notification=$val
345 [with_file_notification=$with_features])
347 ## For the times when you want to build Emacs but don't have
348 ## a suitable makeinfo, and can live without the manuals.
349 dnl http://lists.gnu.org/archive/html/emacs-devel/2008-04/msg01844.html
350 OPTION_DEFAULT_ON([makeinfo],[don't require makeinfo for building manuals])
352 ## This might be a 'configure' arg.
353 AC_SUBST([ACLOCAL_PATH])
355 ## Makefile.in needs the cache file name.
358 ## This is an option because I do not know if all info/man support
359 ## compressed files, nor how to test if they do so.
360 OPTION_DEFAULT_ON([compress-install],
361 [don't compress some files (.el, .info, etc.) when installing. Equivalent to:
362 make GZIP_PROG= install])
364 AC_ARG_WITH(gameuser,dnl
365 [AS_HELP_STRING([--with-gameuser=USER],[user for shared game score files])])
366 test "X${with_gameuser}" != X && test "${with_gameuser}" != yes \
367 && gameuser="${with_gameuser}"
368 test "X$gameuser" = X && gameuser=games
370 AC_ARG_WITH([gnustep-conf],dnl
371 [AS_HELP_STRING([--with-gnustep-conf=FILENAME],
372 [name of GNUstep.conf; default $GNUSTEP_CONFIG_FILE, or /etc/GNUstep/GNUstep.conf])])
373 test "X${with_gnustep_conf}" != X && test "${with_gnustep_conf}" != yes && \
374 GNUSTEP_CONFIG_FILE="${with_gnustep_conf}"
375 test "X$GNUSTEP_CONFIG_FILE" = "X" && \
376 GNUSTEP_CONFIG_FILE=/etc/GNUstep/GNUstep.conf
378 AC_ARG_ENABLE(ns-self-contained,
379 [AS_HELP_STRING([--disable-ns-self-contained],
380 [disable self contained build under NeXTstep])],
381 EN_NS_SELF_CONTAINED=$enableval,
382 EN_NS_SELF_CONTAINED=yes)
384 AC_ARG_ENABLE(locallisppath,
385 [AS_HELP_STRING([--enable-locallisppath=PATH],
386 [directories Emacs should search for lisp files specific
388 if test "${enableval}" = "no"; then
390 elif test "${enableval}" != "yes"; then
391 locallisppath=${enableval}
394 AC_ARG_ENABLE(checking,
395 [AS_HELP_STRING([--enable-checking@<:@=LIST@:>@],
396 [enable expensive run-time checks. With LIST,
397 enable only specific categories of checks.
398 Categories are: all,yes,no.
399 Flags are: stringbytes, stringoverrun, stringfreelist,
400 xmallocoverrun, conslist, glyphs])],
401 [ac_checking_flags="${enableval}"],[])
402 IFS="${IFS= }"; ac_save_IFS="$IFS"; IFS="$IFS,"
403 for check in $ac_checking_flags
406 # these set all the flags to specific states
407 yes) ac_enable_checking=1 ;;
408 no) ac_enable_checking= ;
409 ac_gc_check_stringbytes= ;
410 ac_gc_check_string_overrun= ;
411 ac_gc_check_string_free_list= ;
412 ac_xmalloc_overrun= ;
413 ac_gc_check_cons_list= ;
415 all) ac_enable_checking=1 ;
416 ac_gc_check_stringbytes=1 ;
417 ac_gc_check_string_overrun=1 ;
418 ac_gc_check_string_free_list=1 ;
419 ac_xmalloc_overrun=1 ;
420 ac_gc_check_cons_list=1 ;
422 # these enable particular checks
423 stringbytes) ac_gc_check_stringbytes=1 ;;
424 stringoverrun) ac_gc_check_string_overrun=1 ;;
425 stringfreelist) ac_gc_check_string_free_list=1 ;;
426 xmallocoverrun) ac_xmalloc_overrun=1 ;;
427 conslist) ac_gc_check_cons_list=1 ;;
428 glyphs) ac_glyphs_debug=1 ;;
429 *) AC_MSG_ERROR(unknown check category $check) ;;
434 if test x$ac_enable_checking != x ; then
435 AC_DEFINE(ENABLE_CHECKING, 1,
436 [Define to 1 if expensive run-time data type and consistency checks are enabled.])
438 if test x$ac_gc_check_stringbytes != x ; then
439 AC_DEFINE(GC_CHECK_STRING_BYTES, 1,
440 [Define this temporarily to hunt a bug. If defined, the size of
441 strings is redundantly recorded in sdata structures so that it can
442 be compared to the sizes recorded in Lisp strings.])
444 if test x$ac_gc_check_string_overrun != x ; then
445 AC_DEFINE(GC_CHECK_STRING_OVERRUN, 1,
446 [Define this to check for short string overrun.])
448 if test x$ac_gc_check_string_free_list != x ; then
449 AC_DEFINE(GC_CHECK_STRING_FREE_LIST, 1,
450 [Define this to check the string free list.])
452 if test x$ac_xmalloc_overrun != x ; then
453 AC_DEFINE(XMALLOC_OVERRUN_CHECK, 1,
454 [Define this to check for malloc buffer overrun.])
456 if test x$ac_gc_check_cons_list != x ; then
457 AC_DEFINE(GC_CHECK_CONS_LIST, 1,
458 [Define this to check for errors in cons list.])
460 if test x$ac_glyphs_debug != x ; then
461 AC_DEFINE(GLYPH_DEBUG, 1,
462 [Define this to enable glyphs debugging code.])
465 AC_ARG_ENABLE(check-lisp-object-type,
466 [AS_HELP_STRING([--enable-check-lisp-object-type],
467 [enable compile time checks for the Lisp_Object data type.
468 This is useful for development for catching certain types of bugs.])],
469 if test "${enableval}" != "no"; then
470 AC_DEFINE(CHECK_LISP_OBJECT_TYPE, 1,
471 [Define this to enable compile time checks for the Lisp_Object data type.])
475 dnl The name of this option is unfortunate. It predates, and has no
476 dnl relation to, the "sampling-based elisp profiler" added in 24.3.
477 dnl Actually, it stops it working.
478 dnl http://lists.gnu.org/archive/html/emacs-devel/2012-11/msg00393.html
479 AC_ARG_ENABLE(profiling,
480 [AS_HELP_STRING([--enable-profiling],
481 [build emacs with low-level, gprof profiling support.
482 Mainly useful for debugging Emacs itself. May not work on
483 all platforms. Stops profiler.el working.])],
484 [ac_enable_profiling="${enableval}"],[])
485 if test x$ac_enable_profiling != x ; then
486 PROFILING_CFLAGS="-DPROFILING=1 -pg"
490 AC_SUBST(PROFILING_CFLAGS)
492 AC_ARG_ENABLE(autodepend,
493 [AS_HELP_STRING([--enable-autodepend],
494 [automatically generate dependencies to .h-files.
495 Requires gcc, enabled if found.])],
496 [ac_enable_autodepend="${enableval}"],[ac_enable_autodepend=yes])
498 AC_ARG_ENABLE(gtk-deprecation-warnings,
499 [AS_HELP_STRING([--enable-gtk-deprecation-warnings],
500 [Show Gtk+/Gdk deprecation warnings for Gtk+ >= 3.0])],
501 [ac_enable_gtk_deprecation_warnings="${enableval}"],[])
503 dnl This used to use changequote, but, apart from `changequote is evil'
504 dnl per the autoconf manual, we can speed up autoconf somewhat by quoting
505 dnl the great gob of text. Thus it's not processed for possible expansion.
506 dnl Just make sure the brackets remain balanced.
508 dnl Since Emacs can't find matching pairs of quotes, boundaries are
509 dnl indicated by comments.
513 ### If you add support for a new configuration, add code to this
514 ### switch statement to recognize your configuration name and select
515 ### the appropriate opsys.
517 ### As far as handling version numbers on operating systems is
518 ### concerned, make sure things will fail in a fixable way. If
519 ### /etc/MACHINES doesn't say anything about version numbers, be
520 ### prepared to handle anything reasonably. If version numbers
521 ### matter, be sure /etc/MACHINES says something about it.
524 case "${canonical}" in
526 ## GNU/Linux and similar ports
541 ## FreeBSD kernel + glibc based userland
552 *-*-openbsd* | *-*-mirbsd* )
556 ## Apple Darwin / Mac OS X
558 case "${canonical}" in
560 powerpc-* ) unported=yes ;;
565 *-apple-darwin[0-9].*) unported=yes ;;
568 ## Use fink packages if available.
569 ## FIXME find a better way to do this: http://debbugs.gnu.org/11507
570 ## if test -d /sw/include && test -d /sw/lib; then
571 ## GCC_TEST_OPTIONS="-I/sw/include -L/sw/lib"
572 ## NON_GCC_TEST_OPTIONS=${GCC_TEST_OPTIONS}
581 ## HP 9000 series 700 and 800, running HP/UX
585 hppa*-hp-hpux1[1-9]* )
587 CFLAGS="-D_INCLUDE__STDC_A1_SOURCE $CFLAGS"
591 rs6000-ibm-aix4.[23]* )
594 powerpc-ibm-aix4.[23]* )
597 rs6000-ibm-aix[56]* )
600 powerpc-ibm-aix[5-9]* | powerpc-ibm-aix[1-9][0-9]* )
604 ## Silicon Graphics machines
608 # Without defining _LANGUAGE_C, things get masked out in the headers
609 # so that, for instance, grepping for `free' in stdlib.h fails and
610 # AC_HEADER_STD_C fails. (MIPSPro 7.2.1.2m compilers, Irix 6.5.3m).
611 NON_GCC_TEST_OPTIONS="-D_LANGUAGE_C"
616 | i[3456]86-*-solaris2* | i[3456]86-*-sunos5* \
617 | x86_64-*-solaris2* | x86_64-*-sunos5*)
618 case "${canonical}" in
620 amd64-*-*|x86_64-*-*) ;;
624 case "${canonical}" in
625 *-sunos5.[1-9][0-9]* | *-solaris2.[1-9][0-9]* )
627 emacs_check_sunpro_c=yes
629 *-sunos5.[1-5]* | *-solaris2.[1-5]* ) unported=yes ;;
630 ## Note that Emacs 23.1's NEWS said the following would be dropped.
631 *-sunos5.6* | *-solaris2.6* )
635 ## 5.7 EOL Aug 2008, 5.8 EOL Mar 2012.
636 *-sunos5.[7-9]* | *-solaris2.[7-9]* )
638 emacs_check_sunpro_c=yes
641 ## Watch out for a compiler that we know will not work.
642 case "${canonical}" in
643 *-solaris* | *-sunos5* )
644 if [ "x$CC" = x/usr/ucb/cc ]; then
645 ## /usr/ucb/cc doesn't work;
646 ## we should find some other compiler that does work.
654 ## Intel 386 machines where we don't care about the manufacturer.
656 case "${canonical}" in
657 *-darwin* ) opsys=darwin ;;
660 # MinGW overrides and adds some system headers in nt/inc.
661 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
663 *-sysv4.2uw* ) opsys=unixware ;;
664 *-sysv5uw* ) opsys=unixware ;;
665 *-sysv5OpenUNIX* ) opsys=unixware ;;
666 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
672 case "${canonical}" in
675 # MinGW overrides and adds some system headers in nt/inc.
676 GCC_TEST_OPTIONS="-I $srcdir/nt/inc"
678 ## Otherwise, we'll fall through to the generic opsys code at the bottom.
687 ### If the code above didn't choose an operating system, just choose
688 ### an operating system based on the configuration name. You really
689 ### only want to use this when you have no idea what the right
690 ### operating system is; if you know what operating systems a machine
691 ### runs, it's cleaner to make it explicit in the case statement
693 if test x"${opsys}" = x; then
694 case "${canonical}" in
695 *-gnu* ) opsys=gnu ;;
705 if test $unported = yes; then
706 AC_MSG_ERROR([Emacs does not support `${canonical}' systems.
707 If you think it should, please send a report to ${PACKAGE_BUGREPORT}.
708 Check `etc/MACHINES' for recognized configuration names.])
711 #### Choose a compiler.
713 dnl Don't bother to test for C89.
714 AC_DEFUN([_AC_PROG_CC_C89], [$2])
716 dnl Sets GCC=yes if using gcc.
717 AC_PROG_CC([gcc cc cl clang "$XCRUN gcc" "$XCRUN clang"])
718 if test -n "$XCRUN"; then
719 AC_CHECK_PROGS(AR, [ar "$XCRUN ar"])
720 test -n "$AR" && export AR
723 dnl Emacs needs C99 or later.
728 if test x$GCC = xyes; then
729 test "x$GCC_TEST_OPTIONS" != x && CC="$CC $GCC_TEST_OPTIONS"
731 test "x$NON_GCC_TEST_OPTIONS" != x && CC="$CC $NON_GCC_TEST_OPTIONS"
734 dnl This is used in lib/Makefile.am to use nt/gnulib.mk, the
735 dnl alternative to lib/gnulib.mk, so as to avoid generating header files
736 dnl that clash with MinGW.
737 AM_CONDITIONAL([BUILDING_FOR_WINDOWSNT], [test "x$opsys" = "xmingw32"])
739 # Avoid gnulib's tests for -lcrypto, so that there's no static dependency on it.
740 AC_DEFUN([gl_CRYPTO_CHECK])
741 # Avoid gnulib's tests for HAVE_WORKING_O_NOATIME and HAVE_WORKING_O_NOFOLLOW,
742 # as we don't use them.
743 AC_DEFUN([gl_FCNTL_O_FLAGS])
745 # Initialize gnulib right after choosing the compiler.
746 dnl Amongst other things, this sets AR and ARFLAGS.
749 if test "$ac_test_CFLAGS" != set; then
750 # It's helpful to have C macros available to GDB, so prefer -g3 to -g
751 # if -g3 works and the user does not specify CFLAGS.
752 # This test must follow gl_EARLY; otherwise AC_LINK_IFELSE complains.
755 emacs_g3_CFLAGS='-g3';;
757 emacs_g3_CFLAGS='-g3 -O2';;
761 if test -n "$emacs_g3_CFLAGS"; then
762 emacs_save_CFLAGS=$CFLAGS
763 CFLAGS=$emacs_g3_CFLAGS
764 AC_CACHE_CHECK([whether $CC accepts $emacs_g3_CFLAGS],
765 [emacs_cv_prog_cc_g3],
766 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
767 [emacs_cv_prog_cc_g3=yes],
768 [emacs_cv_prog_cc_g3=no])])
769 if test $emacs_cv_prog_cc_g3 != yes; then
770 CFLAGS=$emacs_save_CFLAGS
772 if test $opsys = mingw32; then
773 CFLAGS="$CFLAGS -gdwarf-2"
780 # No optimization flag was inferred for this non-GCC compiler.
781 # Try -O. This is needed for xlc on AIX; see Bug#14258.
782 emacs_save_CFLAGS=$CFLAGS
783 test -z "$CFLAGS" || CFLAGS="$CFLAGS "
785 AC_CACHE_CHECK([whether $CC accepts -O],
786 [emacs_cv_prog_cc_o],
787 [AC_LINK_IFELSE([AC_LANG_PROGRAM()],
788 [emacs_cv_prog_cc_o=yes],
789 [emacs_cv_prog_cc_o=no])])
790 if test $emacs_cv_prog_cc_o != yes; then
791 CFLAGS=$emacs_save_CFLAGS
796 AC_ARG_ENABLE([gcc-warnings],
797 [AS_HELP_STRING([--enable-gcc-warnings],
798 [turn on lots of GCC warnings/errors. This is intended for
799 developers, and may generate false alarms when used
800 with older or non-GNU development tools.])],
803 *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
805 gl_gcc_warnings=$enableval],
809 # clang is unduly picky about some things.
810 AC_CACHE_CHECK([whether the compiler is clang], [emacs_cv_clang],
817 [emacs_cv_clang=yes],
818 [emacs_cv_clang=no])])
820 # When compiling with GCC, prefer -isystem to -I when including system
821 # include files, to avoid generating useless diagnostics for the files.
822 if test "$gl_gcc_warnings" != yes; then
824 if test "$emacs_cv_clang" = yes
826 # Turn off some warnings if supported.
827 gl_WARN_ADD([-Wno-switch])
828 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
829 gl_WARN_ADD([-Wno-pointer-sign])
830 gl_WARN_ADD([-Wno-string-plus-int])
835 # This, $nw, is the list of warnings we disable.
838 case $with_x_toolkit in
839 lucid | athena | motif)
840 # Old toolkits mishandle 'const'.
841 nw="$nw -Wwrite-strings"
844 gl_WARN_ADD([-Werror], [WERROR_CFLAGS])
847 AC_SUBST([WERROR_CFLAGS])
849 nw="$nw -Wsystem-headers" # Don't let system headers trigger warnings
850 nw="$nw -Woverlength-strings" # Not a problem these days
851 nw="$nw -Wformat-nonliteral" # we do this a lot
852 nw="$nw -Wvla" # Emacs uses <vla.h>.
853 nw="$nw -Wswitch-default" # Too many warnings for now
854 nw="$nw -Winline" # OK to ignore 'inline'
855 nw="$nw -Wjump-misses-init" # We sometimes safely jump over init.
856 nw="$nw -Wstrict-overflow" # OK to optimize assuming that
857 # signed overflow has undefined behavior
858 nw="$nw -Wsync-nand" # irrelevant here, and provokes ObjC warning
859 nw="$nw -Wunsafe-loop-optimizations" # OK to suppress unsafe optimizations
860 nw="$nw -Wbad-function-cast" # These casts are no worse than others.
862 # Emacs doesn't care about shadowing; see
863 # <http://lists.gnu.org/archive/html/emacs-diffs/2011-11/msg00265.html>.
866 # Emacs's use of alloca inhibits protecting the stack.
867 nw="$nw -Wstack-protector"
869 # Emacs's use of partly-pure functions such as CHECK_TYPE make this
870 # option problematic.
871 nw="$nw -Wsuggest-attribute=pure"
873 # This part is merely for shortening the command line,
874 # since -Wno-FOO needs to be added below regardless.
875 nw="$nw -Wmissing-field-initializers"
877 nw="$nw -Wtype-limits"
878 nw="$nw -Wunused-parameter"
880 if test $emacs_cv_clang = yes; then
881 nw="$nw -Wcast-align"
884 gl_MANYWARN_ALL_GCC([ws])
885 gl_MANYWARN_COMPLEMENT([ws], [$ws], [$nw])
889 gl_WARN_ADD([-Wredundant-decls]) # Prefer this, as we don't use Bison.
890 gl_WARN_ADD([-Wno-missing-field-initializers]) # We need this one
891 gl_WARN_ADD([-Wno-sign-compare]) # Too many warnings for now
892 gl_WARN_ADD([-Wno-type-limits]) # Too many warnings for now
893 gl_WARN_ADD([-Wno-switch]) # Too many warnings for now
894 gl_WARN_ADD([-Wno-unused-parameter]) # Too many warnings for now
895 gl_WARN_ADD([-Wno-format-nonliteral])
897 # More things that clang is unduly picky about.
898 if test $emacs_cv_clang = yes; then
899 gl_WARN_ADD([-Wno-format-extra-args])
900 gl_WARN_ADD([-Wno-tautological-constant-out-of-range-compare])
901 gl_WARN_ADD([-Wno-unused-command-line-argument])
902 gl_WARN_ADD([-Wno-unused-value])
905 AC_DEFINE([lint], [1], [Define to 1 if the compiler is checking for lint.])
906 AH_VERBATIM([FORTIFY_SOURCE],
907 [/* Enable compile-time and run-time bounds-checking, and some warnings,
908 without upsetting glibc 2.15+. */
909 #if !defined _FORTIFY_SOURCE && defined __OPTIMIZE__ && __OPTIMIZE__
910 # define _FORTIFY_SOURCE 2
913 AC_DEFINE([GNULIB_PORTCHECK], [1], [enable some gnulib portability checks])
915 # We use a slightly smaller set of warning options for lib/.
916 # Remove the following and save the result in GNULIB_WARN_CFLAGS.
918 nw="$nw -Wunused-macros"
920 gl_MANYWARN_COMPLEMENT([GNULIB_WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
921 AC_SUBST([GNULIB_WARN_CFLAGS])
931 AC_ARG_ENABLE(link-time-optimization,
932 [AS_HELP_STRING([--enable-link-time-optimization],
933 [build emacs with link-time optimization.
934 This requires GCC 4.5.0 or later, or clang.
935 (Note that clang support is experimental - see INSTALL.)
936 It also makes Emacs harder to debug, and when we tried it
937 with GCC 4.9.0 x86-64 it made Emacs slower, so it's not
938 recommended for typical use.])],
939 if test "${enableval}" != "no"; then
941 if test $emacs_cv_clang = yes; then
942 AC_MSG_CHECKING([whether link-time optimization is supported by clang])
943 GOLD_PLUGIN=`$CC -print-file-name=LLVMgold.so 2>/dev/null`
944 if test -x "$GOLD_PLUGIN"; then
947 elif test x$GCC = xyes; then
948 AC_MSG_CHECKING([whether link-time optimization is supported by gcc])
949 CPUS=`getconf _NPROCESSORS_ONLN 2>/dev/null`
950 if test x$CPUS != x; then
956 AC_MSG_ERROR([Link-time optimization is not supported with your compiler.])
958 if test -z "$LTO"; then
962 CFLAGS="$CFLAGS $LTO"
963 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])],
964 [ac_lto_supported=yes], [ac_lto_supported=no])
967 AC_MSG_RESULT([$ac_lto_supported])
968 if test "$ac_lto_supported" = "yes"; then
969 CFLAGS="$CFLAGS $LTO"
970 if test x$emacs_cv_clang = xyes; then
971 AC_MSG_WARN([Please read INSTALL before using link-time optimization with clang])
972 # WARNING: 'ar --plugin ...' doesn't work without
973 # command, so plugin name is appended to ARFLAGS.
974 ARFLAGS="cru --plugin $GOLD_PLUGIN"
975 RANLIB="$RANLIB --plugin $GOLD_PLUGIN"
977 dnl The following is needed for GCC 4.9.0. The GCC 4.9.0 release notes
978 dnl suggest that instead of -ffat-lto-objects we should use gcc-ar and
979 dnl gcc-ranlib in place of ar and ranlib, but gcc-ar makes /usr/bin/ar
980 dnl dump core on Fedora 20, so play it safe for now.
981 gl_COMPILER_OPTION_IF([-ffat-lto-objects],
982 [CFLAGS="$CFLAGS -ffat-lto-objects"])
987 dnl Port to Automake 1.11.
988 dnl This section can be removed once we assume Automake 1.14 or later.
989 : ${AM_DEFAULT_VERBOSITY=1}
990 : ${AM_V=$AM_DEFAULT_VERBOSITY}
991 : ${AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY}
993 AM_SUBST_NOTMAKE([AM_V])
994 AC_SUBST([AM_DEFAULT_V])
995 AM_SUBST_NOTMAKE([AM_DEFAULT_V])
996 AC_SUBST([AM_DEFAULT_VERBOSITY])
998 dnl Some other nice autoconf tests.
999 dnl These are commented out, since gl_EARLY and/or Autoconf already does them.
1002 dnl if test "x$RANLIB" = x; then
1007 dnl Sadly, AC_PROG_LN_S is too restrictive. It also tests whether links
1008 dnl can be made to directories. This is not relevant for our usage, and
1009 dnl excludes some cases that work fine for us. Eg MS Windows or files
1010 dnl hosted on AFS, both examples where simple links work, but links to
1011 dnl directories fail. We use a cut-down version instead.
1014 AC_MSG_CHECKING([whether ln -s works for files in the same directory])
1015 rm -f conf$$ conf$$.file
1017 LN_S_FILEONLY='cp -p'
1019 dnl On MinGW, ensure we will call the MSYS /bin/ln.exe, not some
1020 dnl random program in the current directory.
1021 if (echo >conf$$.file) 2>/dev/null; then
1022 if ln -s conf$$.file conf$$ 2>/dev/null; then
1023 if test "$opsys" = "mingw32"; then
1024 LN_S_FILEONLY='/bin/ln -s'
1026 LN_S_FILEONLY='ln -s'
1028 elif ln conf$$.file conf$$ 2>/dev/null; then
1029 if test "$opsys" = "mingw32"; then
1030 LN_S_FILEONLY=/bin/ln
1037 rm -f conf$$ conf$$.file
1039 if test "$LN_S_FILEONLY" = "ln -s"; then
1040 AC_MSG_RESULT([yes])
1042 AC_MSG_RESULT([no, using $LN_S_FILEONLY])
1045 AC_SUBST(LN_S_FILEONLY)
1048 dnl AC_PROG_LN_S sets LN_S to 'cp -pR' for MinGW, on the premise that 'ln'
1049 dnl doesn't support links to directories, as in "ln file dir". But that
1050 dnl use is non-portable, and OTOH MinGW wants to use hard links for Emacs
1051 dnl executables at "make install" time.
1052 dnl See http://lists.gnu.org/archive/html/emacs-devel/2013-04/msg00475.html
1053 dnl for more details.
1054 if test "$opsys" = "mingw32"; then
1058 dnl On some Debian versions, "install-info" prints irritating messages
1059 dnl "This is not dpkg install-info anymore, but GNU install-info"
1060 dnl if called via an absolute file name.
1061 dnl Use the entirely-identical-but-quieter ginstall-info instead if present.
1062 dnl Sadly some people may have an old ginstall-info installed on
1063 dnl non-Debian systems, so we can't use this.
1064 dnl AC_PATH_PROGS(INSTALL_INFO, [ginstall-info install-info], :,
1065 dnl $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1067 AC_PATH_PROG(INSTALL_INFO, install-info, :,
1068 $PATH$PATH_SEPARATOR/usr/sbin$PATH_SEPARATOR/sbin)
1069 dnl Don't use GZIP, which is used by gzip for additional parameters.
1070 AC_PATH_PROG(GZIP_PROG, gzip)
1072 test $with_compress_install != yes && test -n "$GZIP_PROG" && \
1073 GZIP_PROG=" # $GZIP_PROG # (disabled by configure --without-compress-install)"
1075 if test $opsys = gnu-linux; then
1076 AC_PATH_PROG(PAXCTL, paxctl,,
1077 [$PATH$PATH_SEPARATOR/sbin$PATH_SEPARATOR/usr/sbin])
1078 if test "X$PAXCTL" != X; then
1079 AC_MSG_CHECKING([whether binaries have a PT_PAX_FLAGS header])
1080 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1081 [if $PAXCTL -v conftest$EXEEXT >/dev/null 2>&1; then AC_MSG_RESULT(yes)
1082 else AC_MSG_RESULT(no); PAXCTL=""; fi])
1085 if test "${SETFATTR+set}" != set; then
1086 AC_CACHE_CHECK([for setfattr],
1087 [emacs_cv_prog_setfattr],
1089 if (setfattr -n user.pax.flags conftest.tmp) >/dev/null 2>&1; then
1090 emacs_cv_prog_setfattr=yes
1092 emacs_cv_prog_setfattr=no
1094 if test "$emacs_cv_prog_setfattr" = yes; then
1100 AC_SUBST([SETFATTR])
1104 ## Need makeinfo >= 4.7 (?) to build the manuals.
1105 if test "$MAKEINFO" != "no"; then
1106 if test "$MAKEINFO" = "${am_missing_run}makeinfo"; then
1109 case `($MAKEINFO --version) 2>/dev/null` in
1110 *' (GNU texinfo) '4.[[7-9]]* | \
1111 *' (GNU texinfo) '4.[[1-9][0-9]]* | \
1112 *' (GNU texinfo) '[[5-9]]* | \
1113 *' (GNU texinfo) '[[1-9][0-9]]* ) ;;
1118 ## Makeinfo is unusual. For a released Emacs, the manuals are
1119 ## pre-built, and not deleted by the normal clean rules. makeinfo is
1120 ## therefore in the category of "special tools" not normally required, which
1121 ## configure does not have to check for (eg autoconf itself).
1122 ## In a repository checkout on the other hand, the manuals are not included.
1123 ## So makeinfo is a requirement to build from the repository, and configure
1124 ## should test for it as it does for any other build requirement.
1125 ## We use the presence of $srcdir/info/emacs to distinguish a release,
1126 ## with pre-built manuals, from a repository checkout.
1129 if test "$MAKEINFO" = "no"; then
1131 if test "x${with_makeinfo}" = "xno"; then
1133 elif test ! -e "$srcdir/info/emacs" && test ! -e "$srcdir/info/emacs.info"; then
1134 AC_MSG_ERROR( [You do not seem to have makeinfo >= 4.7, and your
1135 source tree does not seem to have pre-built manuals in the `info' directory.
1136 Either install a suitable version of makeinfo, or re-run configure
1137 with the `--without-makeinfo' option to build without the manuals.] )
1140 AC_SUBST(HAVE_MAKEINFO)
1142 if test $opsys = mingw32; then
1143 DOCMISC_W32=efaq-w32
1147 AC_SUBST(DOCMISC_W32)
1149 dnl Add our options to ac_link now, after it is set up.
1151 if test x$GCC = xyes; then
1152 test "x$GCC_LINK_TEST_OPTIONS" != x && \
1153 ac_link="$ac_link $GCC_LINK_TEST_OPTIONS"
1155 test "x$NON_GCC_LINK_TEST_OPTIONS" != x && \
1156 ac_link="$ac_link $NON_GCC_LINK_TEST_OPTIONS"
1159 dnl We need -znocombreloc if we're using a relatively recent GNU ld.
1160 dnl If we can link with the flag, it shouldn't do any harm anyhow.
1161 dnl (Don't use `-z nocombreloc' as -z takes no arg on Irix.)
1162 dnl Treat GCC specially since it just gives a non-fatal `unrecognized option'
1163 dnl if not built to support GNU ld.
1165 dnl For a long time, -znocombreloc was added to LDFLAGS rather than
1166 dnl LD_SWITCH_SYSTEM_TEMACS. That is:
1167 dnl * inappropriate, as LDFLAGS is a user option but this is essential.
1168 dnl Eg "make LDFLAGS=... all" could run into problems,
1169 dnl http://bugs.debian.org/684788
1170 dnl * unnecessary, since temacs is the only thing that actually needs it.
1171 dnl Indeed this is where it was originally, prior to:
1172 dnl http://lists.gnu.org/archive/html/emacs-pretest-bug/2004-03/msg00170.html
1173 late_LDFLAGS="$LDFLAGS"
1174 if test x$GCC = xyes; then
1175 LDFLAGS_NOCOMBRELOC="-Wl,-znocombreloc"
1177 LDFLAGS_NOCOMBRELOC="-znocombreloc"
1180 LDFLAGS="$LDFLAGS $LDFLAGS_NOCOMBRELOC"
1182 AC_MSG_CHECKING([for -znocombreloc])
1183 AC_LINK_IFELSE([AC_LANG_PROGRAM([], [])],
1184 [AC_MSG_RESULT(yes)],
1185 LDFLAGS_NOCOMBRELOC=
1186 [AC_MSG_RESULT(no)])
1188 LDFLAGS="$late_LDFLAGS"
1190 AC_CACHE_CHECK([whether addresses are sanitized],
1191 [emacs_cv_sanitize_address],
1194 [[#ifndef __has_feature
1195 #define __has_feature(f) 0
1197 #if defined __SANITIZE_ADDRESS__ || __has_feature (address_sanitizer)
1199 error "Addresses are not sanitized.";
1202 [emacs_cv_sanitize_address=yes],
1203 [emacs_cv_sanitize_address=no])])
1205 dnl The function dump-emacs will not be defined and temacs will do
1206 dnl (load "loadup") automatically unless told otherwise.
1207 test "x$CANNOT_DUMP" = "x" && CANNOT_DUMP=no
1209 your-opsys-here) CANNOT_DUMP=yes ;;
1212 if test "$CANNOT_DUMP" = "yes"; then
1213 AC_DEFINE(CANNOT_DUMP, 1, [Define if Emacs cannot be dumped on your system.])
1214 elif test "$emacs_cv_sanitize_address" = yes; then
1215 AC_MSG_WARN([[Addresses are sanitized; suggest CANNOT_DUMP=yes]])
1218 AC_SUBST(CANNOT_DUMP)
1221 UNEXEC_OBJ=unexelf.o
1223 # MSDOS uses unexcoff.o
1225 UNEXEC_OBJ=unexaix.o
1231 UNEXEC_OBJ=unexmacosx.o
1234 UNEXEC_OBJ=unexhp9k800.o
1237 UNEXEC_OBJ=unexw32.o
1240 # Use the Solaris dldump() function, called from unexsol.c, to dump
1241 # emacs, instead of the generic ELF dump code found in unexelf.c.
1242 # The resulting binary has a complete symbol table, and is better
1243 # for debugging and other observability tools (debuggers, pstack, etc).
1245 # If you encounter a problem using dldump(), please consider sending
1246 # a message to the OpenSolaris tools-linking mailing list:
1247 # http://mail.opensolaris.org/mailman/listinfo/tools-linking
1249 # It is likely that dldump() works with older Solaris too, but this has
1250 # not been tested, so for now this change is for Solaris 10 or newer.
1251 UNEXEC_OBJ=unexsol.o
1258 ## Let `ld' find image libs and similar things in /usr/local/lib.
1259 ## The system compiler, GCC, has apparently been modified to not
1260 ## look there, contrary to what a stock GCC would do.
1261 ### It's not our place to do this. See bug#10313#17.
1262 ### LD_SWITCH_SYSTEM=-L/usr/local/lib
1267 ## cpp test was "ifdef __mips__", but presumably this is equivalent...
1268 case $host_cpu in mips*) LD_SWITCH_SYSTEM="-G 0";; esac
1272 ### It's not our place to do this. See bug#10313#17.
1273 ### LD_SWITCH_SYSTEM="-Wl,-rpath,/usr/pkg/lib -L/usr/pkg/lib -Wl,-rpath,/usr/local/lib -L/usr/local/lib"
1278 ## Han Boetes <han@boetes.org> says this is necessary,
1279 ## otherwise Emacs dumps core on elf systems.
1280 LD_SWITCH_SYSTEM="-Z"
1283 AC_SUBST(LD_SWITCH_SYSTEM)
1285 ac_link="$ac_link $LD_SWITCH_SYSTEM"
1287 ## This setting of LD_SWITCH_SYSTEM references LD_SWITCH_X_SITE_RPATH,
1288 ## which has not been defined yet. When this was handled with cpp,
1289 ## it was expanded to null when configure sourced the s/*.h file.
1290 ## Thus LD_SWITCH_SYSTEM had different values in configure and the Makefiles.
1291 ## FIXME it would be cleaner to put this in LD_SWITCH_SYSTEM_TEMACS
1292 ## (or somesuch), but because it is supposed to go at the _front_
1293 ## of LD_SWITCH_SYSTEM, we cannot do that in exactly the same way.
1294 ## Compare with the gnu-linux case below, which added to the end
1295 ## of LD_SWITCH_SYSTEM, and so can instead go at the front of
1296 ## LD_SWITCH_SYSTEM_TEMACS.
1299 LD_SWITCH_SYSTEM="\$(LD_SWITCH_X_SITE_RPATH) $LD_SWITCH_SYSTEM" ;;
1306 AC_CHECK_DECL([__ELF__])
1307 if test "$ac_cv_have_decl___ELF__" = "yes"; then
1308 ## With ELF, make sure that all common symbols get allocated to in the
1309 ## data section. Otherwise, the dump of temacs may miss variables in
1310 ## the shared library that have been initialized. For example, with
1311 ## GNU libc, __malloc_initialized would normally be resolved to the
1312 ## shared library's .bss section, which is fatal.
1313 if test "x$GCC" = "xyes"; then
1314 C_SWITCH_MACHINE="-fno-common"
1316 AC_MSG_ERROR([Non-GCC compilers are not supported.])
1319 dnl This was the unexalpha.c case. Removed in 24.1, 2010-07-24,
1320 dnl albeit under the mistaken assumption that said file
1321 dnl was no longer used.
1322 AC_MSG_ERROR([Non-ELF systems are not supported since Emacs 24.1.])
1326 AC_SUBST(C_SWITCH_MACHINE)
1328 AC_SUBST(UNEXEC_OBJ)
1331 ## Some programs in src produce warnings saying certain subprograms
1332 ## are too complex and need a MAXMEM value greater than 2000 for
1333 ## additional optimization. --nils@exp-math.uni-essen.de
1334 test "$opsys" = "aix4.2" && test "x$GCC" != "xyes" && \
1335 C_SWITCH_SYSTEM="-ma -qmaxmem=4000"
1336 if test "$opsys" = "mingw32"; then
1337 case "$canonical" in
1338 x86_64-*-mingw*) C_SWITCH_SYSTEM="-mtune=generic" ;;
1339 *) C_SWITCH_SYSTEM="-mtune=pentium4" ;;
1342 ## gnu-linux might need -D_BSD_SOURCE on old libc5 systems.
1343 ## It is redundant in glibc2, since we define _GNU_SOURCE.
1344 AC_SUBST(C_SWITCH_SYSTEM)
1349 ## IBM's X11R5 uses -lIM and -liconv in AIX 3.2.2.
1350 aix4-2) LIBS_SYSTEM="-lrts -lIM -liconv" ;;
1352 freebsd|dragonfly) LIBS_SYSTEM="-lutil" ;;
1354 hpux*) LIBS_SYSTEM="-l:libdld.sl" ;;
1356 sol2*) LIBS_SYSTEM="-lsocket -lnsl" ;;
1358 ## Motif needs -lgen.
1359 unixware) LIBS_SYSTEM="-lsocket -lnsl -lelf -lgen" ;;
1362 AC_SUBST(LIBS_SYSTEM)
1364 ### Make sure subsequent tests use flags consistent with the build flags.
1366 if test x"${OVERRIDE_CPPFLAGS}" != x; then
1367 CPPFLAGS="${OVERRIDE_CPPFLAGS}"
1369 CPPFLAGS="$C_SWITCH_SYSTEM $C_SWITCH_MACHINE $CPPFLAGS"
1372 # Suppress obsolescent Autoconf test for size_t; Emacs assumes C99 or better.
1373 AC_DEFUN([AC_TYPE_SIZE_T])
1374 # Likewise for obsolescent test for uid_t, gid_t; Emacs assumes them.
1375 AC_DEFUN([AC_TYPE_UID_T])
1377 # sqrt and other floating-point functions such as fmod and frexp
1378 # are found in -lm on many systems.
1380 AC_SEARCH_LIBS([sqrt], [m])
1381 if test "X$LIBS" = "X$OLD_LIBS"; then
1384 LIB_MATH=$ac_cv_search_sqrt
1388 dnl Current possibilities handled by sed (aix4-2 -> aix,
1389 dnl gnu-linux -> gnu/linux, etc.):
1390 dnl gnu, gnu/linux, gnu/kfreebsd, aix, cygwin, darwin, hpux, irix.
1391 dnl And special cases: berkeley-unix, usg-unix-v, ms-dos, windows-nt.
1392 SYSTEM_TYPE=`echo $opsys | sed -e 's/[[0-9]].*//' -e 's|-|/|'`
1399 ## Adding -lm confuses the dynamic linker, so omit it.
1402 freebsd | dragonfly )
1403 SYSTEM_TYPE=berkeley-unix
1405 gnu-linux | gnu-kfreebsd )
1407 hpux10-20 | hpux11 )
1411 SYSTEM_TYPE=windows-nt
1413 dnl NB this may be adjusted below.
1415 SYSTEM_TYPE=berkeley-unix
1419 SYSTEM_TYPE=usg-unix-v
1425 AC_DEFINE_UNQUOTED(SYSTEM_TYPE, "$SYSTEM_TYPE",
1426 [The type of system you are compiling for; sets `system-type'.])
1429 pre_PKG_CONFIG_CFLAGS=$CFLAGS
1430 pre_PKG_CONFIG_LIBS=$LIBS
1432 PKG_PROG_PKG_CONFIG(0.9.0)
1434 dnl EMACS_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4)
1435 dnl acts like PKG_CHECK_MODULES(GSTUFF, gtk+-2.0 >= 1.3 glib = 1.3.4,
1436 dnl HAVE_GSTUFF=yes, HAVE_GSTUFF=no) -- see pkg-config man page --
1437 dnl except that it postprocesses CFLAGS as needed for --enable-gcc-warnings.
1438 dnl EMACS_CHECK_MODULES accepts optional 3rd and 4th arguments that
1439 dnl can take the place of the default HAVE_GSTUFF=yes and HAVE_GSTUFF=no
1441 AC_DEFUN([EMACS_CHECK_MODULES],
1442 [PKG_CHECK_MODULES([$1], [$2],
1443 [$1_CFLAGS=`AS_ECHO(["$$1_CFLAGS"]) | sed -e "$edit_cflags"`
1444 m4_default([$3], [HAVE_$1=yes])],
1445 [m4_default([$4], [HAVE_$1=no])])])
1448 if test "${with_sound}" != "no"; then
1449 # Sound support for GNU/Linux, the free BSDs, MinGW, and Cygwin.
1450 AC_CHECK_HEADERS([machine/soundcard.h sys/soundcard.h soundcard.h mmsystem.h],
1451 have_sound_header=yes, [], [
1453 #define WIN32_LEAN_AND_MEAN
1454 #include <windows.h>
1457 test "${with_sound}" = "oss" && test "${have_sound_header}" != "yes" && \
1458 AC_MSG_ERROR([OSS sound support requested but not found.])
1460 if test "${with_sound}" = "bsd-ossaudio" || test "${with_sound}" = "yes"; then
1461 # Emulation library used on NetBSD.
1462 AC_CHECK_LIB(ossaudio, _oss_ioctl, LIBSOUND=-lossaudio, LIBSOUND=)
1463 test "${with_sound}" = "bsd-ossaudio" && test -z "$LIBSOUND" && \
1464 AC_MSG_ERROR([bsd-ossaudio sound support requested but not found.])
1465 dnl FIXME? If we did find ossaudio, should we set with_sound=bsd-ossaudio?
1466 dnl Traditionally, we go on to check for alsa too. Does that make sense?
1470 if test "${with_sound}" = "alsa" || test "${with_sound}" = "yes"; then
1472 ALSA_MODULES="alsa >= $ALSA_REQUIRED"
1473 EMACS_CHECK_MODULES([ALSA], [$ALSA_MODULES])
1474 if test $HAVE_ALSA = yes; then
1475 SAVE_CFLAGS="$CFLAGS"
1477 CFLAGS="$ALSA_CFLAGS $CFLAGS"
1478 LIBS="$ALSA_LIBS $LIBS"
1479 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <asoundlib.h>]], [[snd_lib_error_set_handler (0);]])],
1480 emacs_alsa_normal=yes,
1481 emacs_alsa_normal=no)
1482 if test "$emacs_alsa_normal" != yes; then
1483 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <alsa/asoundlib.h>]],
1484 [[snd_lib_error_set_handler (0);]])],
1485 emacs_alsa_subdir=yes,
1486 emacs_alsa_subdir=no)
1487 if test "$emacs_alsa_subdir" != yes; then
1488 AC_MSG_ERROR([pkg-config found alsa, but it does not compile. See config.log for error messages.])
1490 ALSA_CFLAGS="$ALSA_CFLAGS -DALSA_SUBDIR_INCLUDE"
1493 CFLAGS="$SAVE_CFLAGS"
1495 LIBSOUND="$LIBSOUND $ALSA_LIBS"
1496 CFLAGS_SOUND="$CFLAGS_SOUND $ALSA_CFLAGS"
1497 AC_DEFINE(HAVE_ALSA, 1, [Define to 1 if ALSA is available.])
1498 elif test "${with_sound}" = "alsa"; then
1499 AC_MSG_ERROR([ALSA sound support requested but not found.])
1501 fi dnl with_sound = alsa|yes
1503 dnl Define HAVE_SOUND if we have sound support. We know it works and
1504 dnl compiles only on the specified platforms. For others, it
1505 dnl probably doesn't make sense to try.
1506 dnl FIXME So surely we should bypass this whole section if not using
1507 dnl one of these platforms?
1508 if test x$have_sound_header = xyes || test $HAVE_ALSA = yes; then
1510 dnl defined __FreeBSD__ || defined __NetBSD__ || defined __linux__
1511 dnl Adjust the --with-sound help text if you change this.
1512 gnu-linux|freebsd|netbsd|mingw32|cygwin)
1513 AC_DEFINE(HAVE_SOUND, 1, [Define to 1 if you have sound support.])
1519 AC_SUBST(CFLAGS_SOUND)
1522 dnl checks for header files
1523 AC_CHECK_HEADERS_ONCE(
1528 sys/utsname.h pwd.h utmp.h util.h)
1530 AC_MSG_CHECKING(if personality LINUX32 can be set)
1531 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/personality.h>]], [[personality (PER_LINUX32)]])],
1532 emacs_cv_personality_linux32=yes,
1533 emacs_cv_personality_linux32=no)
1534 AC_MSG_RESULT($emacs_cv_personality_linux32)
1536 if test $emacs_cv_personality_linux32 = yes; then
1537 AC_DEFINE(HAVE_PERSONALITY_LINUX32, 1,
1538 [Define to 1 if personality LINUX32 can be set.])
1541 # Note that Solaris has sys/sysinfo.h which defines struct
1542 # sysinfo as well. To make sure that we're using GNU/Linux
1543 # sysinfo, we explicitly set one of its fields.
1544 if test "$ac_cv_header_sys_sysinfo_h" = yes; then
1545 AC_MSG_CHECKING([if Linux sysinfo may be used])
1546 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1547 [[struct sysinfo si;
1550 emacs_cv_linux_sysinfo=yes, emacs_cv_linux_sysinfo=no)
1551 AC_MSG_RESULT($emacs_cv_linux_sysinfo)
1552 if test $emacs_cv_linux_sysinfo = yes; then
1553 AC_DEFINE([HAVE_LINUX_SYSINFO], 1, [Define to 1 if you have Linux sysinfo function.])
1554 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <sys/sysinfo.h>]],
1555 [[struct sysinfo si; return si.mem_unit]])],
1556 AC_DEFINE(LINUX_SYSINFO_UNIT, 1,
1557 [Define to 1 if Linux sysinfo sizes are in multiples of mem_unit bytes.]))
1561 dnl On Solaris 8 there's a compilation warning for term.h because
1562 dnl it doesn't define `bool'.
1563 AC_CHECK_HEADERS(term.h, , , -)
1565 AC_CHECK_DECLS([sys_siglist], [], [], [[#include <signal.h>
1567 if test $ac_cv_have_decl_sys_siglist != yes; then
1568 # For Tru64, at least:
1569 AC_CHECK_DECLS([__sys_siglist], [], [], [[#include <signal.h>
1574 AC_CHECK_HEADERS_ONCE(sys/socket.h)
1575 AC_CHECK_HEADERS(net/if.h, , , [AC_INCLUDES_DEFAULT
1576 #if HAVE_SYS_SOCKET_H
1577 #include <sys/socket.h>
1579 AC_CHECK_HEADERS(ifaddrs.h, , , [AC_INCLUDES_DEFAULT
1580 #if HAVE_SYS_SOCKET_H
1581 #include <sys/socket.h>
1583 AC_CHECK_HEADERS(net/if_dl.h, , , [AC_INCLUDES_DEFAULT
1584 #if HAVE_SYS_SOCKET_H
1585 #include <sys/socket.h>
1588 dnl checks for structure members
1589 AC_CHECK_MEMBERS([struct ifreq.ifr_flags, struct ifreq.ifr_hwaddr,
1590 struct ifreq.ifr_netmask, struct ifreq.ifr_broadaddr,
1591 struct ifreq.ifr_addr,
1592 struct ifreq.ifr_addr.sa_len], , ,
1593 [AC_INCLUDES_DEFAULT
1594 #if HAVE_SYS_SOCKET_H
1595 #include <sys/socket.h>
1601 dnl Check for endianness.
1602 dnl AC_C_BIGENDIAN is done by gnulib.
1604 dnl check for Make feature
1609 dnl check if we have GCC and autodepend is on.
1610 if test "$GCC" = yes && test "$ac_enable_autodepend" = yes; then
1611 AC_MSG_CHECKING([whether gcc understands -MMD -MF])
1612 SAVE_CFLAGS="$CFLAGS"
1613 CFLAGS="$CFLAGS -MMD -MF deps.d -MP"
1614 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[]], [[]])], , ac_enable_autodepend=no)
1615 CFLAGS="$SAVE_CFLAGS"
1616 test -f deps.d || ac_enable_autodepend=no
1618 AC_MSG_RESULT([$ac_enable_autodepend])
1619 if test $ac_enable_autodepend = yes; then
1620 DEPFLAGS='-MMD -MF ${DEPDIR}/$*.d -MP'
1621 ## MKDIR_P is documented (see AC_PROG_MKDIR_P) to be parallel-safe.
1622 MKDEPDIR='${MKDIR_P} ${DEPDIR}'
1623 deps_frag=autodeps.mk
1626 lwlib_deps_frag=$srcdir/lwlib/$deps_frag
1627 oldxmenu_deps_frag=$srcdir/oldXMenu/$deps_frag
1628 deps_frag=$srcdir/src/$deps_frag
1631 AC_SUBST_FILE(deps_frag)
1632 AC_SUBST_FILE(lwlib_deps_frag)
1633 AC_SUBST_FILE(oldxmenu_deps_frag)
1635 lisp_frag=$srcdir/src/lisp.mk
1636 AC_SUBST_FILE(lisp_frag)
1639 dnl checks for operating system services
1640 AC_SYS_LONG_FILE_NAMES
1642 #### Choose a window system.
1644 ## We leave window_system equal to none if
1645 ## we end up building without one. Any new window system should
1646 ## set window_system to an appropriate value and add objects to
1647 ## window-system-specific substs.
1651 if test "$no_x" != yes; then
1655 LD_SWITCH_X_SITE_RPATH=
1656 if test "${x_libraries}" != NONE; then
1657 if test -n "${x_libraries}"; then
1658 LD_SWITCH_X_SITE=-L`echo ${x_libraries} | sed -e "s/:/ -L/g"`
1659 LD_SWITCH_X_SITE_RPATH=-Wl,-rpath,`echo ${x_libraries} | sed -e "s/:/ -Wl,-rpath,/g"`
1661 x_default_search_path=""
1662 x_search_path=${x_libraries}
1663 if test -z "${x_search_path}"; then
1664 x_search_path=/usr/lib
1666 for x_library in `echo ${x_search_path}: | \
1667 sed -e "s/:/ /g" -e p -e "s:/lib[[^ /]]* :/share :g"`; do
1669 ${x_library}/X11/%L/%T/%N%C%S:\
1670 ${x_library}/X11/%l/%T/%N%C%S:\
1671 ${x_library}/X11/%T/%N%C%S:\
1672 ${x_library}/X11/%L/%T/%N%S:\
1673 ${x_library}/X11/%l/%T/%N%S:\
1674 ${x_library}/X11/%T/%N%S"
1675 if test x"${x_default_search_path}" = x; then
1676 x_default_search_path=${x_search_path}
1678 x_default_search_path="${x_search_path}:${x_default_search_path}"
1682 AC_SUBST(LD_SWITCH_X_SITE_RPATH)
1684 if test "${x_includes}" != NONE && test -n "${x_includes}"; then
1685 C_SWITCH_X_SITE="$isystem"`echo ${x_includes} | sed -e "s/:/ $isystem/g"`
1688 if test x"${x_includes}" = x; then
1689 bitmapdir=/usr/include/X11/bitmaps
1691 # accumulate include directories that have X11 bitmap subdirectories
1693 for bmd in `echo ${x_includes} | sed -e "s/:/ /g"`; do
1694 if test -d "${bmd}/X11/bitmaps"; then
1695 bmd_acc="${bmd_acc}:${bmd}/X11/bitmaps"
1697 if test -d "${bmd}/bitmaps"; then
1698 bmd_acc="${bmd_acc}:${bmd}/bitmaps"
1701 if test ${bmd_acc} != "dummyval"; then
1702 bitmapdir=`echo ${bmd_acc} | sed -e "s/^dummyval://"`
1709 tmp_CPPFLAGS="$CPPFLAGS"
1710 tmp_CFLAGS="$CFLAGS"
1711 CPPFLAGS="$CPPFLAGS -x objective-c"
1712 CFLAGS="$CFLAGS -x objective-c"
1715 if test "${with_ns}" != no; then
1716 if test "${opsys}" = darwin; then
1718 ns_appdir=`pwd`/nextstep/Emacs.app
1719 ns_appbindir=${ns_appdir}/Contents/MacOS
1720 ns_appresdir=${ns_appdir}/Contents/Resources
1721 ns_appsrc=Cocoa/Emacs.base
1722 ns_fontfile=macfont.o
1723 elif test -f $GNUSTEP_CONFIG_FILE; then
1725 ns_appdir=`pwd`/nextstep/Emacs.app
1726 ns_appbindir=${ns_appdir}
1727 ns_appresdir=${ns_appdir}/Resources
1728 ns_appsrc=GNUstep/Emacs.base
1729 ns_fontfile=nsfont.o
1730 dnl FIXME sourcing this several times in subshells seems inefficient.
1731 GNUSTEP_SYSTEM_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_HEADERS)"
1732 GNUSTEP_SYSTEM_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_SYSTEM_LIBRARIES)"
1733 dnl I seemed to need these as well with GNUstep-startup 0.25.
1734 GNUSTEP_LOCAL_HEADERS="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_HEADERS)"
1735 GNUSTEP_LOCAL_LIBRARIES="$(. $GNUSTEP_CONFIG_FILE; echo $GNUSTEP_LOCAL_LIBRARIES)"
1736 test "x${GNUSTEP_LOCAL_HEADERS}" != "x" && \
1737 GNUSTEP_LOCAL_HEADERS="-I${GNUSTEP_LOCAL_HEADERS}"
1738 test "x${GNUSTEP_LOCAL_LIBRARIES}" != "x" && \
1739 GNUSTEP_LOCAL_LIBRARIES="-L${GNUSTEP_LOCAL_LIBRARIES}"
1740 CPPFLAGS="$CPPFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1741 CFLAGS="$CFLAGS -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
1742 LDFLAGS="$LDFLAGS -L${GNUSTEP_SYSTEM_LIBRARIES} ${GNUSTEP_LOCAL_LIBRARIES}"
1743 LIBS_GNUSTEP="-lgnustep-gui -lgnustep-base -lobjc -lpthread"
1744 dnl GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS to 0 or 1.
1745 dnl If they had chosen to either define it or not, we could have
1746 dnl just used AC_CHECK_DECL here.
1747 AC_CACHE_CHECK(if GNUstep defines BASE_NATIVE_OBJC_EXCEPTIONS,
1748 emacs_cv_objc_exceptions,
1749 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <GNUstepBase/GSConfig.h>]],
1750 [[#if defined BASE_NATIVE_OBJC_EXCEPTIONS && BASE_NATIVE_OBJC_EXCEPTIONS > 0
1754 #endif]])], emacs_cv_objc_exceptions=yes, emacs_cv_objc_exceptions=no ) )
1755 if test $emacs_cv_objc_exceptions = yes; then
1756 dnl _NATIVE_OBJC_EXCEPTIONS is used by the GNUstep headers.
1757 AC_DEFINE(_NATIVE_OBJC_EXCEPTIONS, 1,
1758 [Define if GNUstep uses ObjC exceptions.])
1759 GNU_OBJC_CFLAGS="-fobjc-exceptions"
1763 dnl This is only used while we test the NS headers, it gets reset below.
1764 CFLAGS="$CFLAGS $GNU_OBJC_CFLAGS"
1766 AC_CHECK_HEADER([AppKit/AppKit.h], [HAVE_NS=yes],
1767 [AC_MSG_ERROR([`--with-ns' was specified, but the include
1768 files are missing or cannot be compiled.])])
1771 if test "${NS_IMPL_COCOA}" = "yes"; then
1772 AC_MSG_CHECKING([for OSX 10.6 or newer])
1773 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([#include <AppKit/AppKit.h>],
1775 #ifdef MAC_OS_X_VERSION_MAX_ALLOWED
1776 #if MAC_OS_X_VERSION_MAX_ALLOWED >= 1060
1779 error "OSX 10.6 or newer required";
1783 ns_osx_have_106=yes,
1785 AC_MSG_RESULT([$ns_osx_have_106])
1787 if test $ns_osx_have_106 = no; then
1788 AC_MSG_ERROR([`OSX 10.6 or newer is required']);
1793 AC_SUBST(LIBS_GNUSTEP)
1795 INSTALL_ARCH_INDEP_EXTRA=install-etc
1796 ns_self_contained=no
1799 if test "${HAVE_NS}" = yes; then
1800 if test "$with_toolkit_scroll_bars" = "no"; then
1801 AC_MSG_ERROR([Non-toolkit scroll bars are not implemented for Nextstep.])
1804 window_system=nextstep
1805 # set up packaging dirs
1806 if test "${EN_NS_SELF_CONTAINED}" = yes; then
1807 ns_self_contained=yes
1808 prefix=${ns_appresdir}
1809 exec_prefix=${ns_appbindir}
1810 dnl This one isn't really used, only archlibdir is.
1811 libexecdir="\${ns_appbindir}/libexec"
1812 archlibdir="\${ns_appbindir}/libexec"
1813 etcdocdir="\${ns_appresdir}/etc"
1814 etcdir="\${ns_appresdir}/etc"
1815 dnl FIXME maybe set datarootdir instead.
1816 dnl That would also get applications, icons, man.
1817 infodir="\${ns_appresdir}/info"
1818 mandir="\${ns_appresdir}/man"
1819 lispdir="\${ns_appresdir}/lisp"
1820 INSTALL_ARCH_INDEP_EXTRA=
1823 NS_OBJC_OBJ="nsterm.o nsfns.o nsmenu.o nsselect.o nsimage.o $ns_fontfile"
1825 CFLAGS="$tmp_CFLAGS"
1826 CPPFLAGS="$tmp_CPPFLAGS"
1827 AC_SUBST(INSTALL_ARCH_INDEP_EXTRA)
1828 AC_SUBST(ns_self_contained)
1830 AC_SUBST(NS_OBJC_OBJ)
1841 if test "${with_w32}" != no; then
1844 AC_CHECK_HEADER([windows.h], [HAVE_W32=yes],
1845 [AC_MSG_ERROR([`--with-w32' was specified, but windows.h
1846 cannot be found.])])
1849 ## Using --with-w32 with MinGW is a no-op, but we allow it.
1852 AC_MSG_ERROR([Using w32 with an autotools build is only supported for Cygwin and MinGW32.])
1857 if test "${opsys}" = "mingw32"; then
1858 AC_MSG_CHECKING([whether Windows API headers are recent enough])
1859 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
1860 #include <windows.h>
1861 #include <usp10.h>]],
1862 [[PIMAGE_NT_HEADERS pHeader;
1863 PIMAGE_SECTION_HEADER pSection = IMAGE_FIRST_SECTION(pHeader)]])],
1864 [emacs_cv_w32api=yes
1867 AC_MSG_RESULT($emacs_cv_w32api)
1868 if test "${emacs_cv_w32api}" = "no"; then
1869 AC_MSG_ERROR([the Windows API headers are too old to support this build.])
1880 if test "${HAVE_W32}" = "yes"; then
1881 AC_DEFINE(HAVE_NTGUI, 1, [Define to use native MS Windows GUI.])
1882 AC_CHECK_TOOL(WINDRES, [windres],
1883 [AC_MSG_ERROR([No resource compiler found.])])
1884 W32_OBJ="w32fns.o w32menu.o w32reg.o w32font.o w32term.o"
1885 W32_OBJ="$W32_OBJ w32xfns.o w32select.o w32uniscribe.o"
1886 EMACSRES="emacs.res"
1887 case "$canonical" in
1888 x86_64-*-*) EMACS_MANIFEST="emacs-x64.manifest" ;;
1889 *) EMACS_MANIFEST="emacs-x86.manifest" ;;
1891 if test "${opsys}" = "cygwin"; then
1892 W32_LIBS="$W32_LIBS -lkernel32 -luser32 -lgdi32 -lole32 -lcomdlg32"
1893 W32_LIBS="$W32_LIBS -lusp10 -lcomctl32 -lwinspool"
1894 # Tell the linker that emacs.res is an object (which we compile from
1895 # the rc file), not a linker script.
1896 W32_RES_LINK="-Wl,emacs.res"
1898 UPDATE_MANIFEST=update-game-score.exe.manifest
1899 W32_OBJ="$W32_OBJ w32.o w32console.o w32heap.o w32inevt.o w32proc.o"
1900 W32_LIBS="$W32_LIBS -lwinmm -lgdi32 -lcomdlg32"
1901 W32_LIBS="$W32_LIBS -lmpr -lwinspool -lole32 -lcomctl32 -lusp10"
1902 W32_RES_LINK="\$(EMACSRES)"
1903 CLIENTRES="emacsclient.res"
1904 CLIENTW="emacsclientw\$(EXEEXT)"
1905 FIRSTFILE_OBJ=firstfile.o
1908 LIBS_ECLIENT="-lcomctl32"
1909 LIB_WSOCK32="-lwsock32"
1910 NTLIB="ntlib.$ac_objext"
1911 XARGS_LIMIT="-s 10000"
1917 AC_SUBST(EMACS_MANIFEST)
1918 AC_SUBST(UPDATE_MANIFEST)
1921 AC_SUBST(W32_RES_LINK)
1922 AC_SUBST(FIRSTFILE_OBJ)
1925 AC_SUBST(LIBS_ECLIENT)
1926 AC_SUBST(LIB_WSOCK32)
1928 AC_SUBST(XARGS_LIMIT)
1930 if test "${HAVE_W32}" = "yes"; then
1935 ## $window_system is now set to the window system we will
1938 if test "$window_system" = none && test "$gl_gcc_warnings" = yes; then
1939 # Too many warnings for now.
1941 nw="$nw -Wsuggest-attribute=const"
1942 nw="$nw -Wsuggest-attribute=noreturn"
1943 gl_MANYWARN_COMPLEMENT([WARN_CFLAGS], [$WARN_CFLAGS], [$nw])
1945 gl_WARN_ADD([-Wno-unused-variable])
1946 gl_WARN_ADD([-Wno-unused-but-set-variable])
1947 gl_WARN_ADD([-Wno-unused-but-set-parameter])
1955 case "${window_system}" in
1960 case "${with_x_toolkit}" in
1961 athena | lucid ) USE_X_TOOLKIT=LUCID ;;
1962 motif ) USE_X_TOOLKIT=MOTIF ;;
1964 term_header=gtkutil.h
1965 dnl Don't set this for GTK. A lot of tests below assumes Xt when
1966 dnl USE_X_TOOLKIT is set.
1967 USE_X_TOOLKIT=none ;;
1968 gtk2 ) with_gtk2=yes
1969 term_header=gtkutil.h
1970 USE_X_TOOLKIT=none ;;
1971 gtk3 ) with_gtk3=yes
1972 term_header=gtkutil.h
1973 USE_X_TOOLKIT=none ;;
1974 no ) USE_X_TOOLKIT=none ;;
1975 dnl If user did not say whether to use a toolkit, make this decision later:
1976 dnl use the toolkit if we have gtk, or X11R5 or newer.
1977 * ) USE_X_TOOLKIT=maybe ;;
1981 term_header=nsterm.h
1984 term_header=w32term.h
1988 if test "$window_system" = none && test "X$with_x" != "Xno"; then
1989 AC_CHECK_PROG(HAVE_XSERVER, X, true, false)
1990 if test "$HAVE_XSERVER" = true ||
1991 test -n "$DISPLAY" ||
1992 test "`echo /usr/lib/libX11.*`" != "/usr/lib/libX11.*"; then
1993 AC_MSG_ERROR([You seem to be running X, but no X development libraries
1994 were found. You should install the relevant development files for X
1995 and for the toolkit you want, such as Gtk+ or Motif. Also make
1996 sure you have development files for image handling, i.e.
1997 tiff, gif, jpeg, png and xpm.
1998 If you are sure you want Emacs compiled without X window support, pass
2004 # Does the opsystem file prohibit the use of the GNU malloc?
2005 # Assume not, until told otherwise.
2009 [whether malloc is Doug Lea style],
2010 [emacs_cv_var_doug_lea_malloc],
2011 [emacs_cv_var_doug_lea_malloc=no
2012 dnl Hooks do not work with address sanitization.
2013 if test "$emacs_cv_sanitize_address" != yes; then
2016 [[#include <malloc.h>
2017 static void hook (void) {}]],
2018 [[malloc_set_state (malloc_get_state ());
2019 __after_morecore_hook = hook;
2020 __malloc_initialize_hook = hook;]])],
2021 [emacs_cv_var_doug_lea_malloc=yes])])
2023 doug_lea_malloc=$emacs_cv_var_doug_lea_malloc
2025 system_malloc=$emacs_cv_sanitize_address
2030 ## darwin ld insists on the use of malloc routines in the System framework.
2031 darwin|mingw32|sol2-10) system_malloc=yes ;;
2032 cygwin) hybrid_malloc=yes;;
2036 if test "${system_malloc}" = "yes"; then
2037 AC_DEFINE([SYSTEM_MALLOC], 1,
2038 [Define to 1 to use the system memory allocator, even if it is not
2042 (The GNU allocators don't work with this system configuration.)"
2044 elif test "$hybrid_malloc" = yes; then
2045 AC_DEFINE(HYBRID_MALLOC, 1,
2046 [Define to use gmalloc before dumping and the system malloc after.])
2048 GNU_MALLOC_reason="only before dumping"
2049 GMALLOC_OBJ=gmalloc.o
2052 test "$doug_lea_malloc" != "yes" && GMALLOC_OBJ=gmalloc.o
2053 VMLIMIT_OBJ=vm-limit.o
2055 AC_CHECK_HEADERS([sys/vlimit.h])
2056 AC_CACHE_CHECK([for data_start], [emacs_cv_data_start],
2059 [[extern char data_start[]; char ch;]],
2060 [[return data_start < &ch;]])],
2061 [emacs_cv_data_start=yes],
2062 [emacs_cv_data_start=no])])
2063 if test $emacs_cv_data_start = yes; then
2064 AC_DEFINE([HAVE_DATA_START], 1,
2065 [Define to 1 if data_start is the address of the start
2066 of the main data segment.])
2069 AC_SUBST(GMALLOC_OBJ)
2070 AC_SUBST(VMLIMIT_OBJ)
2072 if test "$doug_lea_malloc" = "yes" ; then
2073 if test "$GNU_MALLOC" = yes ; then
2075 (Using Doug Lea's new malloc from the GNU C Library.)"
2077 AC_DEFINE(DOUG_LEA_MALLOC, 1,
2078 [Define to 1 if the system memory allocator is Doug Lea style,
2079 with malloc hooks and malloc_set_state.])
2081 ## Use mmap directly for allocating larger buffers.
2082 ## FIXME this comes from src/s/{gnu,gnu-linux}.h:
2083 ## #ifdef DOUG_LEA_MALLOC; #undef REL_ALLOC; #endif
2084 ## Does the AC_FUNC_MMAP test below make this check unnecessary?
2086 mingw32|gnu*) REL_ALLOC=no ;;
2090 if test x"${REL_ALLOC}" = x; then
2091 REL_ALLOC=${GNU_MALLOC}
2094 use_mmap_for_buffers=no
2096 cygwin|mingw32|freebsd|irix6-5) use_mmap_for_buffers=yes ;;
2100 if test $use_mmap_for_buffers = yes; then
2101 AC_DEFINE(USE_MMAP_FOR_BUFFERS, 1, [Define to use mmap to allocate buffer text.])
2105 LIBS="$LIBS_SYSTEM $LIBS"
2107 dnl FIXME replace main with a function we actually want from this library.
2108 AC_CHECK_LIB(Xbsd, main, LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -lXbsd")
2110 dnl Check for the POSIX thread library.
2112 if test "$opsys" != "mingw32"; then
2113 AC_CHECK_HEADERS_ONCE(pthread.h)
2114 if test "$ac_cv_header_pthread_h"; then
2115 dnl gmalloc.c uses pthread_atfork, which is not available on older-style
2116 dnl hosts such as MirBSD 10, so test for pthread_atfork instead of merely
2117 dnl testing for pthread_kill if Emacs uses gmalloc.c.
2118 if test "$GMALLOC_OBJ" = gmalloc.o; then
2119 emacs_pthread_function=pthread_atfork
2121 emacs_pthread_function=pthread_kill
2124 AC_SEARCH_LIBS([$emacs_pthread_function], [pthread],
2125 [AC_DEFINE([HAVE_PTHREAD], [1],
2126 [Define to 1 if you have pthread (-lpthread).])
2127 # Some systems optimize for single-threaded programs by default, and
2128 # need special flags to disable these optimizations. For example, the
2129 # definition of 'errno' in <errno.h>.
2132 AC_DEFINE([_REENTRANT], 1,
2133 [Define to 1 if your system requires this in multithreaded code.]);;
2135 AC_DEFINE([_THREAD_SAFE], 1,
2136 [Define to 1 if your system requires this in multithreaded code.]);;
2138 if test "X$LIBS" != "X$OLD_LIBS"; then
2139 eval LIB_PTHREAD=\$ac_cv_search_$emacs_pthread_function
2143 AC_SUBST([LIB_PTHREAD])
2146 dnl Check for need for bigtoc support on IBM AIX
2150 AC_CACHE_CHECK([for -bbigtoc option], [gdb_cv_bigtoc], [
2152 yes) gdb_cv_bigtoc=-Wl,-bbigtoc ;;
2153 *) gdb_cv_bigtoc=-bbigtoc ;;
2156 LDFLAGS=$LDFLAGS\ $gdb_cv_bigtoc
2157 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]], [[int i;]])], [], [gdb_cv_bigtoc=])
2162 # Change CFLAGS, CPPFLAGS, and LIBS temporarily so that C_SWITCH_X_SITE
2163 # is for the tests that follow. We set them back later on.
2165 REAL_CFLAGS="$CFLAGS"
2166 REAL_CPPFLAGS="$CPPFLAGS"
2169 if test "${HAVE_X11}" = "yes"; then
2170 DEFS="$C_SWITCH_X_SITE $DEFS"
2171 LDFLAGS="$LDFLAGS $LD_SWITCH_X_SITE"
2173 CFLAGS="$C_SWITCH_X_SITE $CFLAGS"
2174 CPPFLAGS="$C_SWITCH_X_SITE $CPPFLAGS"
2176 # On Solaris, arrange for LD_RUN_PATH to point to the X libraries for tests.
2177 # This is handled by LD_SWITCH_X_SITE_RPATH during the real build,
2178 # but it's more convenient here to set LD_RUN_PATH since this
2179 # also works on hosts that don't understand LD_SWITCH_X_SITE_RPATH.
2180 if test "${x_libraries}" != NONE && test -n "${x_libraries}"; then
2181 LD_RUN_PATH=$x_libraries${LD_RUN_PATH+:}$LD_RUN_PATH
2185 if test "${opsys}" = "gnu-linux"; then
2186 AC_MSG_CHECKING(whether X on GNU/Linux needs -b to link)
2187 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2188 [[XOpenDisplay ("foo");]])],
2189 [xgnu_linux_first_failure=no],
2190 [xgnu_linux_first_failure=yes])
2191 if test "${xgnu_linux_first_failure}" = "yes"; then
2192 OLD_CPPFLAGS="$CPPFLAGS"
2194 CPPFLAGS="$CPPFLAGS -b i486-linuxaout"
2195 LIBS="$LIBS -b i486-linuxaout"
2196 AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],
2197 [[XOpenDisplay ("foo");]])],
2198 [xgnu_linux_second_failure=no],
2199 [xgnu_linux_second_failure=yes])
2200 if test "${xgnu_linux_second_failure}" = "yes"; then
2201 # If we get the same failure with -b, there is no use adding -b.
2202 # So leave it out. This plays safe.
2205 LD_SWITCH_X_SITE="$LD_SWITCH_X_SITE -b i486-linuxaout"
2206 C_SWITCH_X_SITE="$C_SWITCH_X_SITE -b i486-linuxaout"
2209 CPPFLAGS=$OLD_CPPFLAGS
2216 # Reportedly, some broken Solaris systems have XKBlib.h but are missing
2217 # header files included from there.
2218 AC_MSG_CHECKING(for Xkb)
2219 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>
2220 #include <X11/XKBlib.h>]],
2221 [[XkbDescPtr kb = XkbGetKeyboard (0, XkbAllComponentsMask, XkbUseCoreKbd);]])],
2222 emacs_xkb=yes, emacs_xkb=no)
2223 AC_MSG_RESULT($emacs_xkb)
2224 if test $emacs_xkb = yes; then
2225 AC_DEFINE(HAVE_XKB, 1, [Define to 1 if you have the Xkb extension.])
2228 AC_CHECK_FUNCS(XrmSetDatabase XScreenResourceString \
2229 XScreenNumberOfScreen)
2232 if test "${window_system}" = "x11"; then
2233 AC_MSG_CHECKING(X11 version 6)
2234 AC_CACHE_VAL(emacs_cv_x11_version_6,
2235 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Xlib.h>]],
2236 [[#if XlibSpecificationRelease < 6
2239 ]])], emacs_cv_x11_version_6=yes, emacs_cv_x11_version_6=no)])
2240 if test $emacs_cv_x11_version_6 = yes; then
2241 AC_MSG_RESULT(6 or newer)
2242 AC_DEFINE(HAVE_X11R6, 1,
2243 [Define to 1 if you have the X11R6 or newer version of Xlib.])
2244 AC_DEFINE(HAVE_X_I18N, 1, [Define if you have usable i18n support.])
2245 ## inoue@ainet.or.jp says Solaris has a bug related to X11R6-style
2249 *) AC_DEFINE(HAVE_X11R6_XIM, 1,
2250 [Define if you have usable X11R6-style XIM support.])
2254 AC_MSG_RESULT(before 6)
2259 ### Use -lrsvg-2 if available, unless `--with-rsvg=no' is specified.
2261 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${opsys}" = "mingw32"; then
2262 if test "${with_rsvg}" != "no"; then
2263 RSVG_REQUIRED=2.11.0
2264 RSVG_MODULE="librsvg-2.0 >= $RSVG_REQUIRED"
2266 EMACS_CHECK_MODULES([RSVG], [$RSVG_MODULE])
2267 AC_SUBST(RSVG_CFLAGS)
2270 if test $HAVE_RSVG = yes; then
2271 AC_DEFINE(HAVE_RSVG, 1, [Define to 1 if using librsvg.])
2272 CFLAGS="$CFLAGS $RSVG_CFLAGS"
2273 # Windows loads librsvg dynamically
2274 if test "${opsys}" = "mingw32"; then
2282 if test "${HAVE_X11}" = "yes" || test "${HAVE_NS}" = "yes" || test "${HAVE_W32}" = "yes"; then
2283 if test "${with_imagemagick}" != "no"; then
2284 ## 6.3.5 is the earliest version known to work; see Bug#17339.
2285 ## 6.8.2 makes Emacs crash; see Bug#13867.
2286 IMAGEMAGICK_MODULE="Wand >= 6.3.5 Wand != 6.8.2"
2287 EMACS_CHECK_MODULES([IMAGEMAGICK], [$IMAGEMAGICK_MODULE])
2288 AC_SUBST(IMAGEMAGICK_CFLAGS)
2289 AC_SUBST(IMAGEMAGICK_LIBS)
2291 if test $HAVE_IMAGEMAGICK = yes; then
2292 AC_DEFINE(HAVE_IMAGEMAGICK, 1, [Define to 1 if using imagemagick.])
2295 CFLAGS="$CFLAGS $IMAGEMAGICK_CFLAGS"
2296 LIBS="$IMAGEMAGICK_LIBS $LIBS"
2297 AC_CHECK_FUNCS(MagickExportImagePixels MagickMergeImageLayers)
2307 gtk_term_header=$term_header
2310 if test "${opsys}" != "mingw32"; then
2311 if test "${with_gtk3}" = "yes" || test "${with_gtk}" = "yes" || test "$USE_X_TOOLKIT" = "maybe"; then
2314 GTK_MODULES="gtk+-3.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2316 dnl Checks for libraries.
2317 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2318 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2319 if test "$pkg_check_gtk" = "no" && test "$with_gtk3" = "yes"; then
2320 AC_MSG_ERROR($GTK_PKG_ERRORS)
2322 if test "$pkg_check_gtk" = "yes"; then
2323 AC_DEFINE(HAVE_GTK3, 1, [Define to 1 if using GTK 3 or later.])
2324 GTK_OBJ=emacsgtkfixed.o
2325 gtk_term_header=gtkutil.h
2326 USE_GTK_TOOLKIT="GTK3"
2327 if test "x$ac_enable_gtk_deprecation_warnings" = x; then
2328 AC_DEFINE([GDK_DISABLE_DEPRECATION_WARNINGS], [1],
2329 [Define to 1 to disable GTK+/GDK deprecation warnings.])
2330 AC_DEFINE([GLIB_DISABLE_DEPRECATION_WARNINGS], [1],
2331 [Define to 1 to disable Glib deprecation warnings.])
2335 gtk3_pkg_errors="$GTK_PKG_ERRORS "
2339 if test "${with_gtk2}" = "yes" || test "$check_gtk2" = "yes"; then
2342 GTK_MODULES="gtk+-2.0 >= $GTK_REQUIRED glib-2.0 >= $GLIB_REQUIRED"
2344 dnl Checks for libraries.
2345 EMACS_CHECK_MODULES([GTK], [$GTK_MODULES],
2346 [pkg_check_gtk=yes], [pkg_check_gtk=no])
2347 if test "$pkg_check_gtk" = "no" &&
2348 { test "$with_gtk" = yes || test "$with_gtk2" = "yes"; }
2350 AC_MSG_ERROR($gtk3_pkg_errors$GTK_PKG_ERRORS)
2352 test "$pkg_check_gtk" = "yes" && USE_GTK_TOOLKIT="GTK2"
2359 if test x"$pkg_check_gtk" = xyes; then
2362 CFLAGS="$CFLAGS $GTK_CFLAGS"
2363 LIBS="$GTK_LIBS $LIBS"
2364 dnl Try to compile a simple GTK program.
2365 AC_MSG_CHECKING([whether GTK compiles])
2369 [[/* Check the Gtk and Glib APIs. */
2370 #include <gtk/gtk.h>
2371 #include <glib-object.h>
2373 callback (GObject *go, GParamSpec *spec, gpointer user_data)
2377 GtkSettings *gs = 0;
2378 /* Use G_CALLBACK to make sure function pointers can be cast to void *;
2379 strict C prohibits this. Use gtk_main_iteration to test that the
2380 libraries are there. */
2381 if (g_signal_handler_find (G_OBJECT (gs), G_SIGNAL_MATCH_FUNC,
2382 0, 0, 0, G_CALLBACK (callback), 0))
2383 gtk_main_iteration ();
2386 AC_MSG_RESULT([$GTK_COMPILES])
2387 if test "${GTK_COMPILES}" != "yes"; then
2389 if test "$USE_X_TOOLKIT" != "maybe"; then
2390 AC_MSG_ERROR([Gtk+ wanted, but it does not compile, see config.log. Maybe some x11-devel files missing?]);
2393 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $GTK_CFLAGS"
2395 AC_DEFINE(USE_GTK, 1, [Define to 1 if using GTK.])
2396 GTK_OBJ="gtkutil.o $GTK_OBJ"
2397 term_header=$gtk_term_header
2399 if "$PKG_CONFIG" --atleast-version=2.10 gtk+-2.0; then
2402 AC_MSG_WARN([[Your version of Gtk+ will have problems with
2403 closing open displays. This is no problem if you just use
2404 one display, but if you use more than one and close one of them
2414 if test "${HAVE_GTK}" = "yes"; then
2416 dnl GTK scrollbars resemble toolkit scrollbars a lot, so to avoid
2417 dnl a lot if #ifdef:s, say we have toolkit scrollbars.
2418 if test "$with_toolkit_scroll_bars" != no; then
2419 with_toolkit_scroll_bars=yes
2422 dnl Check if we have the old file selection dialog declared and
2423 dnl in the link library. In 2.x it may be in the library,
2424 dnl but not declared if deprecated featured has been selected out.
2425 dnl AC_CHECK_DECL checks for a macro, so check for GTK_TYPE_FILE_SELECTION.
2426 HAVE_GTK_FILE_SELECTION=no
2427 AC_CHECK_DECL(GTK_TYPE_FILE_SELECTION, HAVE_GTK_FILE_SELECTION=yes,
2428 HAVE_GTK_FILE_SELECTION=no, [AC_INCLUDES_DEFAULT
2429 #include <gtk/gtk.h>])
2430 if test "$HAVE_GTK_FILE_SELECTION" = yes; then
2431 AC_CHECK_FUNCS(gtk_file_selection_new)
2434 dnl Same as above for gtk_handle_box.
2435 HAVE_GTK_HANDLE_BOX=no
2436 AC_CHECK_DECL(GTK_TYPE_HANDLE_BOX, HAVE_GTK_HANDLE_BOX=yes,
2437 HAVE_GTK_HANDLE_BOX=no, [AC_INCLUDES_DEFAULT
2438 #include <gtk/gtk.h>])
2439 if test "$HAVE_GTK_HANDLE_BOX" = yes; then
2440 AC_CHECK_FUNCS(gtk_handle_box_new)
2443 dnl Same as above for gtk_tearoff_menu_item.
2444 HAVE_GTK_TEAROFF_MENU_ITEM=no
2445 AC_CHECK_DECL(GTK_TYPE_TEAROFF_MENU_ITEM, HAVE_GTK_TEAROFF_MENU_ITEM=yes,
2446 HAVE_GTK_TEAROFF_MENU_ITEM=no, [AC_INCLUDES_DEFAULT
2447 #include <gtk/gtk.h>])
2448 if test "$HAVE_GTK_TEAROFF_MENU_ITEM" = yes; then
2449 AC_CHECK_FUNCS(gtk_tearoff_menu_item_new)
2452 dnl Check for functions introduced in 2.14 and later.
2453 AC_CHECK_FUNCS(gtk_widget_get_window gtk_widget_set_has_window \
2454 gtk_dialog_get_action_area gtk_widget_get_sensitive \
2455 gtk_widget_get_mapped gtk_adjustment_get_page_size \
2456 gtk_orientable_set_orientation \
2457 gtk_window_set_has_resize_grip)
2459 term_header=gtkutil.h
2465 dnl D-Bus has been tested under GNU/Linux only. Must be adapted for
2466 dnl other platforms.
2469 if test "${with_dbus}" = "yes"; then
2470 EMACS_CHECK_MODULES([DBUS], [dbus-1 >= 1.0])
2471 if test "$HAVE_DBUS" = yes; then
2472 AC_DEFINE(HAVE_DBUS, 1, [Define to 1 if using D-Bus.])
2473 dnl dbus_watch_get_unix_fd has been introduced in D-Bus 1.1.1.
2474 dnl dbus_type_is_valid and dbus_validate_* have been introduced in
2477 LIBS="$LIBS $DBUS_LIBS"
2478 AC_CHECK_FUNCS(dbus_watch_get_unix_fd \
2479 dbus_type_is_valid \
2480 dbus_validate_bus_name \
2481 dbus_validate_path \
2482 dbus_validate_interface \
2483 dbus_validate_member)
2488 AC_SUBST(DBUS_CFLAGS)
2492 dnl GSettings has been tested under GNU/Linux only.
2494 if test "${HAVE_X11}" = "yes" && test "${with_gsettings}" = "yes"; then
2495 EMACS_CHECK_MODULES([GSETTINGS], [gio-2.0 >= 2.26])
2496 if test "$HAVE_GSETTINGS" = "yes"; then
2498 CFLAGS="$CFLAGS $GSETTINGS_CFLAGS"
2500 LIBS="$LIBS $GSETTINGS_LIBS"
2501 AC_MSG_CHECKING([whether GSettings is in gio])
2504 [[/* Check that gsettings really is present. */
2505 #include <glib-object.h>
2506 #include <gio/gio.h>
2509 GSettings *settings;
2510 GVariant *val = g_settings_get_value (settings, "");
2512 [], HAVE_GSETTINGS=no)
2513 AC_MSG_RESULT([$HAVE_GSETTINGS])
2515 if test "$HAVE_GSETTINGS" = "yes"; then
2516 AC_DEFINE(HAVE_GSETTINGS, 1, [Define to 1 if using GSettings.])
2517 SETTINGS_CFLAGS="$GSETTINGS_CFLAGS"
2518 SETTINGS_LIBS="$GSETTINGS_LIBS"
2525 dnl GConf has been tested under GNU/Linux only.
2526 dnl The version is really arbitrary, it is about the same age as Gtk+ 2.6.
2528 if test "${HAVE_X11}" = "yes" && test "${with_gconf}" = "yes"; then
2529 EMACS_CHECK_MODULES([GCONF], [gconf-2.0 >= 2.13])
2530 if test "$HAVE_GCONF" = yes; then
2531 AC_DEFINE(HAVE_GCONF, 1, [Define to 1 if using GConf.])
2532 dnl Newer GConf doesn't link with g_objects, so this is not defined.
2533 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GCONF_CFLAGS"
2534 SETTINGS_LIBS="$SETTINGS_LIBS $GCONF_LIBS"
2538 if test "$HAVE_GSETTINGS" = "yes" || test "$HAVE_GCONF" = "yes"; then
2539 EMACS_CHECK_MODULES([GOBJECT], [gobject-2.0 >= 2.0])
2540 if test "$HAVE_GOBJECT" = "yes"; then
2541 SETTINGS_CFLAGS="$SETTINGS_CFLAGS $GOBJECT_CFLAGS"
2542 SETTINGS_LIBS="$SETTINGS_LIBS $GOBJECT_LIBS"
2544 SAVE_CFLAGS="$CFLAGS"
2546 CFLAGS="$SETTINGS_CFLAGS $CFLAGS"
2547 LIBS="$SETTINGS_LIBS $LIBS"
2548 CFLAGS="$SAVE_CFLAGS"
2551 AC_SUBST(SETTINGS_CFLAGS)
2552 AC_SUBST(SETTINGS_LIBS)
2555 dnl SELinux is available for GNU/Linux only.
2558 if test "${with_selinux}" = "yes"; then
2559 AC_CHECK_LIB([selinux], [lgetfilecon], HAVE_LIBSELINUX=yes, HAVE_LIBSELINUX=no)
2560 if test "$HAVE_LIBSELINUX" = yes; then
2561 AC_DEFINE(HAVE_LIBSELINUX, 1, [Define to 1 if using SELinux.])
2562 LIBSELINUX_LIBS=-lselinux
2565 AC_SUBST(LIBSELINUX_LIBS)
2569 if test "${with_gnutls}" = "yes" ; then
2570 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 3.0.0],
2571 [HAVE_GNUTLS3=yes], [HAVE_GNUTLS3=no])
2572 if test "${HAVE_GNUTLS3}" = "yes"; then
2573 AC_DEFINE(HAVE_GNUTLS3, 1, [Define if using GnuTLS v3.])
2576 EMACS_CHECK_MODULES([LIBGNUTLS], [gnutls >= 2.6.6],
2577 [HAVE_GNUTLS=yes], [HAVE_GNUTLS=no])
2579 if test "${HAVE_GNUTLS}" = "yes"; then
2580 AC_DEFINE(HAVE_GNUTLS, 1, [Define if using GnuTLS.])
2583 # Windows loads GnuTLS dynamically
2584 if test "${opsys}" = "mingw32"; then
2589 AC_SUBST(LIBGNUTLS_LIBS)
2590 AC_SUBST(LIBGNUTLS_CFLAGS)
2595 dnl FIXME? Don't auto-detect on NS, but do allow someone to specify
2596 dnl a particular library. This doesn't make much sense?
2597 if test "${with_ns}" = yes && test ${with_file_notification} = yes; then
2598 with_file_notification=no
2601 dnl MS Windows native file monitor is available for mingw32 only.
2602 case $with_file_notification,$opsys in
2603 w32,* | yes,mingw32)
2604 AC_CHECK_HEADER(windows.h)
2605 if test "$ac_cv_header_windows_h" = yes ; then
2606 AC_DEFINE(HAVE_W32NOTIFY, 1, [Define to 1 to use w32notify.])
2607 NOTIFY_OBJ=w32notify.o
2608 NOTIFY_SUMMARY="yes (w32)"
2612 dnl g_file_monitor exists since glib 2.18. G_FILE_MONITOR_EVENT_MOVED
2613 dnl has been added in glib 2.24. It has been tested under
2614 dnl GNU/Linux only. We take precedence over inotify, but this makes
2615 dnl only sense when glib has been compiled with inotify support. How
2617 case $with_file_notification,$NOTIFY_OBJ in
2619 EMACS_CHECK_MODULES([GFILENOTIFY], [gio-2.0 >= 2.24])
2620 if test "$HAVE_GFILENOTIFY" = "yes"; then
2621 AC_DEFINE(HAVE_GFILENOTIFY, 1, [Define to 1 if using GFile.])
2622 NOTIFY_OBJ=gfilenotify.o
2623 NOTIFY_SUMMARY="yes -lgio (gfile)"
2627 dnl inotify is only available on GNU/Linux.
2628 case $with_file_notification,$NOTIFY_OBJ in
2630 AC_CHECK_HEADER(sys/inotify.h)
2631 if test "$ac_cv_header_sys_inotify_h" = yes ; then
2632 AC_CHECK_FUNC(inotify_init1)
2633 if test "$ac_cv_func_inotify_init1" = yes; then
2634 AC_DEFINE(HAVE_INOTIFY, 1, [Define to 1 to use inotify.])
2635 NOTIFY_OBJ=inotify.o
2636 NOTIFY_SUMMARY="yes -lglibc (inotify)"
2641 case $with_file_notification,$NOTIFY_OBJ in
2642 yes,* | no,* | *,?*) ;;
2643 *) AC_MSG_ERROR([File notification `$with_file_notification' requested but requirements not found.]) ;;
2646 if test -n "$NOTIFY_OBJ"; then
2647 AC_DEFINE(USE_FILE_NOTIFY, 1, [Define to 1 if using file notifications.])
2649 AC_SUBST(NOTIFY_OBJ)
2650 AC_SUBST(GFILENOTIFY_CFLAGS)
2651 AC_SUBST(GFILENOTIFY_LIBS)
2653 dnl Do not put whitespace before the #include statements below.
2654 dnl Older compilers (eg sunos4 cc) choke on it.
2657 if test x"${USE_X_TOOLKIT}" = xmaybe || test x"${USE_X_TOOLKIT}" = xLUCID; then
2658 if test "$with_xaw3d" != no; then
2659 AC_CACHE_VAL(emacs_cv_xaw3d,
2660 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2661 #include <X11/Intrinsic.h>
2662 #include <X11/Xaw3d/Simple.h>]],
2664 [AC_CHECK_LIB(Xaw3d, XawScrollbarSetThumb,
2665 emacs_cv_xaw3d=yes, emacs_cv_xaw3d=no)],
2666 emacs_cv_xaw3d=no)])
2670 if test $emacs_cv_xaw3d = yes; then
2671 AC_MSG_CHECKING(for xaw3d)
2672 AC_MSG_RESULT([yes; using Lucid toolkit])
2676 AC_DEFINE(HAVE_XAW3D, 1,
2677 [Define to 1 if you have the Xaw3d library (-lXaw3d).])
2679 AC_MSG_CHECKING(for xaw3d)
2681 AC_MSG_CHECKING(for libXaw)
2682 AC_CACHE_VAL(emacs_cv_xaw,
2683 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[
2684 #include <X11/Intrinsic.h>
2685 #include <X11/Xaw/Simple.h>]],
2689 if test $emacs_cv_xaw = yes; then
2690 AC_MSG_RESULT([yes; using Lucid toolkit])
2693 elif test x"${USE_X_TOOLKIT}" = xLUCID; then
2694 AC_MSG_ERROR([Lucid toolkit requires X11/Xaw include files])
2696 AC_MSG_ERROR([No X toolkit could be found.
2697 If you are sure you want Emacs compiled without an X toolkit, pass
2699 to configure. Otherwise, install the development libraries for the toolkit
2700 that you want to use (e.g. Gtk+) and re-run configure.])
2705 X_TOOLKIT_TYPE=$USE_X_TOOLKIT
2709 if test "${USE_X_TOOLKIT}" != "none"; then
2710 AC_MSG_CHECKING(X11 toolkit version)
2711 AC_CACHE_VAL(emacs_cv_x11_toolkit_version_6,
2712 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <X11/Intrinsic.h>]],
2713 [[#if XtSpecificationRelease < 6
2716 ]])], emacs_cv_x11_toolkit_version_6=yes, emacs_cv_x11_toolkit_version_6=no)])
2717 HAVE_X11XTR6=$emacs_cv_x11_toolkit_version_6
2718 if test $emacs_cv_x11_toolkit_version_6 = yes; then
2719 AC_MSG_RESULT(6 or newer)
2720 AC_DEFINE(HAVE_X11XTR6, 1,
2721 [Define to 1 if you have the X11R6 or newer version of Xt.])
2722 LIBXTR6="-lSM -lICE"
2724 ## Use libw.a along with X11R6 Xt.
2725 unixware) LIBXTR6="$LIBXTR6 -lw" ;;
2728 AC_MSG_RESULT(before 6)
2731 dnl If using toolkit, check whether libXmu.a exists.
2732 dnl tranle@intellicorp.com says libXmu.a can need XtMalloc in libXt.a to link.
2734 if test x$HAVE_X11XTR6 = xyes; then
2735 OTHERLIBS='-lXt -lSM -lICE'
2739 AC_SEARCH_LIBS([XmuConvertStandardSelection], [Xmu], [], [], [$OTHERLIBS])
2740 if test "X$LIBS" != "X$OLDLIBS"; then
2741 LIBXMU=$ac_cv_search_XmuConvertStandardSelection
2744 dnl ac_cv_search_XmuConvertStandardSelection is also referenced below.
2750 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2751 # OpenMotif may be installed in such a way on some GNU/Linux systems.
2752 if test -d /usr/include/openmotif; then
2753 CPPFLAGS="-I/usr/include/openmotif $CPPFLAGS"
2754 emacs_cv_openmotif=yes
2755 case "$canonical" in
2756 x86_64-*-linux-gnu* | powerpc64-*-linux-gnu* | sparc64-*-linux-gnu*)
2757 test -d /usr/lib64/openmotif && LDFLAGS="-L/usr/lib64/openmotif $LDFLAGS"
2760 test -d /usr/lib/openmotif && LDFLAGS="-L/usr/lib/openmotif $LDFLAGS"
2763 emacs_cv_openmotif=no
2765 AC_CACHE_CHECK(for (Open)Motif version 2.1, emacs_cv_motif_version_2_1,
2766 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include <Xm/Xm.h>]],
2767 [[#if XmVERSION > 2 || (XmVERSION == 2 && XmREVISION >= 1)
2770 Motif version prior to 2.1.
2772 emacs_cv_motif_version_2_1=yes, emacs_cv_motif_version_2_1=no)])
2773 if test $emacs_cv_motif_version_2_1 = yes; then
2774 AC_CHECK_LIB(Xp, XpCreateContext, LIBXP=-lXp)
2775 if test x$emacs_cv_openmotif = xyes; then
2776 REAL_CPPFLAGS="-I/usr/include/openmotif $REAL_CPPFLAGS"
2779 AC_CACHE_CHECK(for LessTif where some systems put it, emacs_cv_lesstif,
2780 # We put this in CFLAGS temporarily to precede other -I options
2781 # that might be in CFLAGS temporarily.
2782 # We put this in CPPFLAGS where it precedes the other -I options.
2783 OLD_CPPFLAGS=$CPPFLAGS
2785 CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CPPFLAGS"
2786 CFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $CFLAGS"
2787 [AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[#include </usr/X11R6/LessTif/Motif1.2/include/Xm/Xm.h>]],
2789 emacs_cv_lesstif=yes, emacs_cv_lesstif=no)])
2790 if test $emacs_cv_lesstif = yes; then
2791 # Make sure this -I option remains in CPPFLAGS after it is set
2792 # back to REAL_CPPFLAGS.
2793 # There is no need to change REAL_CFLAGS, because REAL_CFLAGS does not
2794 # have those other -I options anyway. Ultimately, having this
2795 # directory ultimately in CPPFLAGS will be enough.
2796 REAL_CPPFLAGS="-I/usr/X11R6/LessTif/Motif1.2/include $REAL_CPPFLAGS"
2797 LDFLAGS="-L/usr/X11R6/LessTif/Motif1.2/lib $LDFLAGS"
2800 CPPFLAGS=$OLD_CPPFLAGS
2803 AC_CHECK_HEADER([Xm/BulletinB.h], [],
2804 [AC_MSG_ERROR([Motif toolkit requested but requirements not found.])])
2807 dnl Use toolkit scroll bars if configured for GTK or X toolkit and either
2808 dnl using Motif or Xaw3d is available, and unless
2809 dnl --with-toolkit-scroll-bars=no was specified.
2811 AH_TEMPLATE(USE_TOOLKIT_SCROLL_BARS,
2812 [Define to 1 if we should use toolkit scroll bars.])dnl
2813 USE_TOOLKIT_SCROLL_BARS=no
2814 if test "${with_toolkit_scroll_bars}" != "no"; then
2815 if test "${USE_X_TOOLKIT}" != "none"; then
2816 if test "${USE_X_TOOLKIT}" = "MOTIF"; then
2817 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2819 USE_TOOLKIT_SCROLL_BARS=yes
2820 elif test "${HAVE_XAW3D}" = "yes" || test "${USE_X_TOOLKIT}" = "LUCID"; then
2821 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2822 USE_TOOLKIT_SCROLL_BARS=yes
2824 elif test "${HAVE_GTK}" = "yes"; then
2825 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2826 USE_TOOLKIT_SCROLL_BARS=yes
2827 elif test "${HAVE_NS}" = "yes"; then
2828 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2829 USE_TOOLKIT_SCROLL_BARS=yes
2830 elif test "${HAVE_W32}" = "yes"; then
2831 AC_DEFINE(USE_TOOLKIT_SCROLL_BARS)
2832 USE_TOOLKIT_SCROLL_BARS=yes
2836 dnl See if XIM is available.
2837 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2838 #include <X11/Xlib.h>
2839 #include <X11/Xresource.h>]],
2840 [[XIMProc callback;]])],
2842 AC_DEFINE(HAVE_XIM, 1, [Define to 1 if XIM is available])],
2845 dnl `--with-xim' now controls only the initial value of use_xim at run time.
2847 if test "${with_xim}" != "no"; then
2848 AC_DEFINE(USE_XIM, 1,
2849 [Define to 1 if we should use XIM, if it is available.])
2853 if test "${HAVE_XIM}" != "no"; then
2855 if test "$GCC" = yes; then
2856 CFLAGS="$CFLAGS --pedantic-errors"
2858 AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
2859 #include <X11/Xlib.h>
2860 #include <X11/Xresource.h>]],
2866 XPointer *client_data;
2868 /* If we're not using GCC, it's probably not XFree86, and this is
2869 probably right, but we can't use something like --pedantic-errors. */
2870 extern Bool XRegisterIMInstantiateCallback(Display*, XrmDatabase, char*,
2871 char*, XIMProc, XPointer*);
2873 (void)XRegisterIMInstantiateCallback(display, db, res_name, res_class, callback,
2875 [emacs_cv_arg6_star=yes])
2876 AH_TEMPLATE(XRegisterIMInstantiateCallback_arg6,
2877 [Define to the type of the 6th arg of XRegisterIMInstantiateCallback,
2878 either XPointer or XPointer*.])dnl
2879 if test "$emacs_cv_arg6_star" = yes; then
2880 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer*])
2882 AC_DEFINE(XRegisterIMInstantiateCallback_arg6, [XPointer])
2887 ### Start of font-backend (under any platform) section.
2888 # (nothing here yet -- this is a placeholder)
2889 ### End of font-backend (under any platform) section.
2891 ### Start of font-backend (under X11) section.
2892 if test "${HAVE_X11}" = "yes"; then
2893 ## Use -lXft if available, unless `--with-xft=no'.
2895 if test "x${with_x}" = "xno"; then
2899 if test "$with_xft" != no; then
2900 EMACS_CHECK_MODULES([FONTCONFIG], [fontconfig >= 2.2.0])
2901 with_xft=$HAVE_FONTCONFIG
2904 if test "x${with_xft}" != "xno"; then
2906 EMACS_CHECK_MODULES([XFT], [xft >= 0.13.0], [], [HAVE_XFT=no])
2907 ## Because xftfont.c uses XRenderQueryExtension, we also
2908 ## need to link to -lXrender.
2910 AC_CHECK_LIB(Xrender, XRenderQueryExtension, HAVE_XRENDER=yes)
2911 if test "$HAVE_XFT" != no && test "$HAVE_XRENDER" != no; then
2912 OLD_CPPFLAGS="$CPPFLAGS"
2913 OLD_CFLAGS="$CFLAGS"
2915 CPPFLAGS="$CPPFLAGS $XFT_CFLAGS"
2916 CFLAGS="$CFLAGS $XFT_CFLAGS"
2917 XFT_LIBS="-lXrender $XFT_LIBS"
2918 LIBS="$XFT_LIBS $LIBS"
2919 AC_CHECK_HEADER(X11/Xft/Xft.h,
2920 AC_CHECK_LIB(Xft, XftFontOpen, HAVE_XFT=yes, , $XFT_LIBS) , ,
2921 [[#include <X11/X.h>]])
2923 if test "${HAVE_XFT}" = "yes"; then
2924 AC_DEFINE(HAVE_XFT, 1, [Define to 1 if you have the Xft library.])
2926 C_SWITCH_X_SITE="$C_SWITCH_X_SITE $XFT_CFLAGS"
2927 fi # "${HAVE_XFT}" = "yes"
2928 CPPFLAGS=$OLD_CPPFLAGS
2931 fi # "$HAVE_XFT" != no
2932 fi # "x${with_xft}" != "xno"
2934 ## We used to allow building with FreeType and without Xft.
2935 ## However, the ftx font backend driver is not in good shape.
2936 if test "$HAVE_XFT" != "yes"; then
2937 dnl For the "Does Emacs use" message at the end.
2941 dnl Strict linkers fail with
2942 dnl ftfont.o: undefined reference to symbol 'FT_New_Face'
2943 dnl if -lfreetype is not specified.
2944 dnl The following is needed to set FREETYPE_LIBS.
2945 EMACS_CHECK_MODULES([FREETYPE], [freetype2])
2947 test "$HAVE_FREETYPE" = "no" && AC_MSG_ERROR(libxft requires libfreetype)
2951 if test "${HAVE_FREETYPE}" = "yes"; then
2952 AC_DEFINE(HAVE_FREETYPE, 1,
2953 [Define to 1 if using the freetype and fontconfig libraries.])
2954 if test "${with_libotf}" != "no"; then
2955 EMACS_CHECK_MODULES([LIBOTF], [libotf])
2956 if test "$HAVE_LIBOTF" = "yes"; then
2957 AC_DEFINE(HAVE_LIBOTF, 1, [Define to 1 if using libotf.])
2958 AC_CHECK_LIB(otf, OTF_get_variation_glyphs,
2959 HAVE_OTF_GET_VARIATION_GLYPHS=yes,
2960 HAVE_OTF_GET_VARIATION_GLYPHS=no)
2961 if test "${HAVE_OTF_GET_VARIATION_GLYPHS}" = "yes"; then
2962 AC_DEFINE(HAVE_OTF_GET_VARIATION_GLYPHS, 1,
2963 [Define to 1 if libotf has OTF_get_variation_glyphs.])
2967 dnl FIXME should there be an error if HAVE_FREETYPE != yes?
2968 dnl Does the new font backend require it, or can it work without it?
2972 if test "${HAVE_LIBOTF}" = yes; then
2973 if test "${with_m17n_flt}" != "no"; then
2974 EMACS_CHECK_MODULES([M17N_FLT], [m17n-flt])
2975 if test "$HAVE_M17N_FLT" = "yes"; then
2976 AC_DEFINE(HAVE_M17N_FLT, 1, [Define to 1 if using libm17n-flt.])
2987 ### End of font-backend (under X11) section.
2989 AC_SUBST(FREETYPE_CFLAGS)
2990 AC_SUBST(FREETYPE_LIBS)
2991 AC_SUBST(FONTCONFIG_CFLAGS)
2992 AC_SUBST(FONTCONFIG_LIBS)
2993 AC_SUBST(LIBOTF_CFLAGS)
2994 AC_SUBST(LIBOTF_LIBS)
2995 AC_SUBST(M17N_FLT_CFLAGS)
2996 AC_SUBST(M17N_FLT_LIBS)
2998 ### Use -lXpm if available, unless `--with-xpm=no'.
2999 ### mingw32 doesn't use -lXpm, since it loads the library dynamically.
3000 ### In the Cygwin-w32 build, we need to use /usr/include/noX/X11/xpm.h
3001 ### rather than /usr/include/X11/xpm.h, so we set CPPFLAGS (and
3002 ### LDFLAGS) accordingly.
3005 if test "${HAVE_W32}" = "yes" && test "${opsys}" = "cygwin"; then
3006 if test "${with_xpm}" != "no"; then
3007 SAVE_CPPFLAGS="$CPPFLAGS"
3008 SAVE_LDFLAGS="$LDFLAGS"
3009 CPPFLAGS="$CPPFLAGS -I/usr/include/noX"
3010 LDFLAGS="$LDFLAGS -L/usr/lib/noX"
3011 AC_CHECK_HEADER(X11/xpm.h,
3012 [AC_CHECK_LIB(Xpm, XpmReadFileToImage, HAVE_XPM=yes)])
3013 if test "${HAVE_XPM}" = "yes"; then
3014 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3015 AC_EGREP_CPP(no_return_alloc_pixels,
3016 [#include "X11/xpm.h"
3017 #ifndef XpmReturnAllocPixels
3018 no_return_alloc_pixels
3020 ], HAVE_XPM=no, HAVE_XPM=yes)
3022 if test "${HAVE_XPM}" = "yes"; then
3023 REAL_CPPFLAGS="$REAL_CPPFLAGS -I/usr/include/noX"
3027 CPPFLAGS="$SAVE_CPPFLAGS"
3028 LDFLAGS="$SAVE_LDFLAGS"
3033 if test "${HAVE_XPM}" = "yes"; then
3034 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3039 if test "${HAVE_X11}" = "yes"; then
3040 dnl Avoid Xpm on AIX unless requested, as it crashes; see Bug#17598.
3041 test "$opsys$with_xpm_set" = aix4-2 && with_xpm=no
3043 if test "${with_xpm}" != "no"; then
3044 AC_CHECK_HEADER(X11/xpm.h,
3045 [AC_CHECK_LIB(Xpm, XpmReadFileToPixmap, HAVE_XPM=yes, , -lX11)])
3046 if test "${HAVE_XPM}" = "yes"; then
3047 AC_MSG_CHECKING(for XpmReturnAllocPixels preprocessor define)
3048 AC_EGREP_CPP(no_return_alloc_pixels,
3049 [#include "X11/xpm.h"
3050 #ifndef XpmReturnAllocPixels
3051 no_return_alloc_pixels
3053 ], HAVE_XPM=no, HAVE_XPM=yes)
3055 if test "${HAVE_XPM}" = "yes"; then
3063 if test "${HAVE_XPM}" = "yes"; then
3064 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3066 elif test "$opsys,$LUCID_LIBW" = aix4-2,-lXaw; then
3067 dnl AIX -lXaw needs -lXpm linked too; see Bug#17598 Message#152.
3072 ### FIXME: Perhaps regroup to minimize code duplication due to MinGW's
3073 ### slightly different requirements wrt image libraries (it doesn't
3074 ### use -lXpm because it loads the xpm shared library dynamically at
3076 if test "${opsys}" = "mingw32"; then
3077 if test "${with_xpm}" != "no"; then
3078 AC_CHECK_HEADER(X11/xpm.h, HAVE_XPM=yes, HAVE_XPM=no, [
3082 if test "${HAVE_XPM}" = "yes"; then
3083 AC_DEFINE(HAVE_XPM, 1, [Define to 1 if you have the Xpm library (-lXpm).])
3089 ### Use -ljpeg if available, unless `--with-jpeg=no'.
3090 ### mingw32 doesn't use -ljpeg, since it loads the library dynamically.
3093 if test "${opsys}" = "mingw32"; then
3094 if test "${with_jpeg}" != "no"; then
3095 dnl Checking for jpeglib.h can lose because of a redefinition of
3097 AC_CHECK_HEADER(jerror.h, HAVE_JPEG=yes, HAVE_JPEG=no)
3099 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3100 if test "${HAVE_JPEG}" = "yes"; then
3101 AC_DEFINE(HAVE_JPEG)
3102 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3103 [#include <jpeglib.h>
3104 version=JPEG_LIB_VERSION
3106 [AC_DEFINE(HAVE_JPEG)],
3107 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3110 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3111 if test "${with_jpeg}" != "no"; then
3112 dnl Checking for jpeglib.h can lose because of a redefinition of
3114 AC_CHECK_HEADER(jerror.h,
3115 [AC_CHECK_LIB(jpeg, jpeg_destroy_compress, HAVE_JPEG=yes)])
3118 AH_TEMPLATE(HAVE_JPEG, [Define to 1 if you have the jpeg library (-ljpeg).])dnl
3119 if test "${HAVE_JPEG}" = "yes"; then
3120 AC_DEFINE(HAVE_JPEG)
3121 AC_EGREP_CPP([version= *(6[2-9]|[7-9][0-9])],
3122 [#include <jpeglib.h>
3123 version=JPEG_LIB_VERSION
3125 [AC_DEFINE(HAVE_JPEG)],
3126 [AC_MSG_WARN([libjpeg found, but not version 6b or later])
3129 if test "${HAVE_JPEG}" = "yes"; then
3137 if test "${with_zlib}" != "no"; then
3139 AC_SEARCH_LIBS([inflateEnd], [z], [HAVE_ZLIB=yes])
3141 case $ac_cv_search_inflateEnd in
3142 -*) LIBZ=$ac_cv_search_inflateEnd ;;
3145 if test "${HAVE_ZLIB}" = "yes"; then
3146 AC_DEFINE([HAVE_ZLIB], 1, [Define to 1 if you have the zlib library (-lz).])
3147 ### mingw32 doesn't use -lz, since it loads the library dynamically.
3148 if test "${opsys}" = "mingw32"; then
3154 ### Use -lpng if available, unless `--with-png=no'.
3158 if test "${NS_IMPL_COCOA}" = yes; then
3160 elif test "${with_png}" != no; then
3161 # mingw32 loads the library dynamically.
3162 if test "$opsys" = mingw32; then
3163 AC_CHECK_HEADER([png.h], [HAVE_PNG=yes])
3164 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3165 AC_MSG_CHECKING([for png])
3166 png_cflags=`(libpng-config --cflags) 2>&AS_MESSAGE_LOG_FD` &&
3167 png_libs=`(libpng-config --libs) 2>&AS_MESSAGE_LOG_FD` || {
3168 # libpng-config does not work; configure by hand.
3169 # Debian unstable as of July 2003 has multiple libpngs, and puts png.h
3170 # in /usr/include/libpng.
3171 if test -r /usr/include/libpng/png.h &&
3172 test ! -r /usr/include/png.h; then
3173 png_cflags=-I/usr/include/libpng
3181 CFLAGS="$CFLAGS $png_cflags"
3182 LIBS="$png_libs -lz -lm $LIBS"
3184 [AC_LANG_PROGRAM([[#include <png.h>]],
3185 [[return !png_get_channels (0, 0);]])],
3187 PNG_CFLAGS=`AS_ECHO(["$png_cflags"]) | sed -e "$edit_cflags"`
3189 # $LIBPNG requires explicit -lz in some cases.
3190 # We don't know what those cases are, exactly, so play it safe and
3191 # append -lz to any nonempty $LIBPNG, unless we're already using LIBZ.
3192 if test -n "$LIBPNG" && test -z "$LIBZ"; then
3193 LIBPNG="$LIBPNG -lz"
3197 AC_MSG_RESULT([$HAVE_PNG])
3200 if test $HAVE_PNG = yes; then
3201 AC_DEFINE([HAVE_PNG], [1], [Define to 1 if you have the png library.])
3204 CFLAGS="$CFLAGS $PNG_CFLAGS"
3205 AC_CHECK_DECL([png_longjmp],
3207 [AC_DEFINE([PNG_DEPSTRUCT], [],
3208 [Define to empty to suppress deprecation warnings when building
3209 with --enable-gcc-warnings and with libpng versions before 1.5,
3210 which lack png_longjmp.])],
3216 AC_SUBST(PNG_CFLAGS)
3218 ### Use -ltiff if available, unless `--with-tiff=no'.
3219 ### mingw32 doesn't use -ltiff, since it loads the library dynamically.
3222 if test "${opsys}" = "mingw32"; then
3223 if test "${with_tiff}" != "no"; then
3224 AC_CHECK_HEADER(tiffio.h, HAVE_TIFF=yes, HAVE_TIFF=no)
3226 if test "${HAVE_TIFF}" = "yes"; then
3227 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3229 elif test "${HAVE_X11}" = "yes" || test "${HAVE_W32}" = "yes"; then
3230 if test "${with_tiff}" != "no"; then
3231 AC_CHECK_HEADER(tiffio.h,
3233 # At least one tiff package requires the jpeg library.
3234 if test "${HAVE_JPEG}" = yes; then tifflibs="-ljpeg $tifflibs"; fi
3235 AC_CHECK_LIB(tiff, TIFFGetVersion, HAVE_TIFF=yes, , $tifflibs)])
3238 if test "${HAVE_TIFF}" = "yes"; then
3239 AC_DEFINE(HAVE_TIFF, 1, [Define to 1 if you have the tiff library (-ltiff).])
3240 dnl FIXME -lz -lm, as per libpng?
3246 ### Use -lgif or -lungif if available, unless `--with-gif=no'.
3247 ### mingw32 doesn't use -lgif/-lungif, since it loads the library dynamically.
3250 if test "${opsys}" = "mingw32"; then
3251 if test "${with_gif}" != "no"; then
3252 AC_CHECK_HEADER(gif_lib.h, HAVE_GIF=yes, HAVE_GIF=no)
3254 if test "${HAVE_GIF}" = "yes"; then
3255 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3257 elif test "${HAVE_X11}" = "yes" && test "${with_gif}" != "no" \
3258 || test "${HAVE_W32}" = "yes"; then
3259 AC_CHECK_HEADER(gif_lib.h,
3260 # EGifPutExtensionLast only exists from version libungif-4.1.0b1.
3261 # Earlier versions can crash Emacs, but version 5.0 removes EGifPutExtensionLast.
3262 [AC_CHECK_LIB(gif, GifMakeMapObject, HAVE_GIF=yes,
3263 [AC_CHECK_LIB(gif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=maybe)])])
3265 if test "$HAVE_GIF" = yes; then
3267 elif test "$HAVE_GIF" = maybe; then
3268 # If gif_lib.h but no libgif, try libungif.
3269 AC_CHECK_LIB(ungif, EGifPutExtensionLast, HAVE_GIF=yes, HAVE_GIF=no)
3270 test "$HAVE_GIF" = yes && LIBGIF=-lungif
3273 if test "${HAVE_GIF}" = "yes"; then
3274 AC_DEFINE(HAVE_GIF, 1, [Define to 1 if you have a gif (or ungif) library.])
3279 dnl Check for required libraries.
3280 if test "${HAVE_X11}" = "yes"; then
3283 test "${with_xpm}" != "no" && test "${HAVE_XPM}" != "yes" &&
3284 MISSING="libXpm" && WITH_NO="--with-xpm=no"
3285 test "${with_jpeg}" != "no" && test "${HAVE_JPEG}" != "yes" &&
3286 MISSING="$MISSING libjpeg" && WITH_NO="$WITH_NO --with-jpeg=no"
3287 test "${with_png}" != "no" && test "${HAVE_PNG}" != "yes" &&
3288 MISSING="$MISSING libpng" && WITH_NO="$WITH_NO --with-png=no"
3289 test "${with_gif}" != "no" && test "${HAVE_GIF}" != "yes" &&
3290 MISSING="$MISSING libgif/libungif" && WITH_NO="$WITH_NO --with-gif=no"
3291 test "${with_tiff}" != "no" && test "${HAVE_TIFF}" != "yes" &&
3292 MISSING="$MISSING libtiff" && WITH_NO="$WITH_NO --with-tiff=no"
3294 if test "X${MISSING}" != X; then
3295 AC_MSG_ERROR([The following required libraries were not found:
3297 Maybe some development libraries/packages are missing?
3298 If you don't want to link with them give
3300 as options to configure])
3304 ### Use -lgpm if available, unless `--with-gpm=no'.
3307 if test "${with_gpm}" != "no"; then
3308 AC_CHECK_HEADER(gpm.h,
3309 [AC_CHECK_LIB(gpm, Gpm_Open, HAVE_GPM=yes)])
3311 if test "${HAVE_GPM}" = "yes"; then
3312 AC_DEFINE(HAVE_GPM, 1, [Define to 1 if you have the gpm library (-lgpm).])
3318 dnl Check for malloc/malloc.h on darwin
3319 AC_CHECK_HEADERS_ONCE(malloc/malloc.h)
3322 ### Use NeXTstep API to implement GUI.
3323 if test "${HAVE_NS}" = "yes"; then
3324 AC_DEFINE(HAVE_NS, 1, [Define to 1 if you are using the NeXTstep API, either GNUstep or Cocoa on Mac OS X.])
3325 if test "${NS_IMPL_COCOA}" = "yes"; then
3326 AC_DEFINE(NS_IMPL_COCOA, 1, [Define to 1 if you are using NS windowing under MacOS X.])
3328 if test "${NS_IMPL_GNUSTEP}" = "yes"; then
3329 AC_DEFINE(NS_IMPL_GNUSTEP, 1, [Define to 1 if you are using NS windowing under GNUstep.])
3330 # See also .m.o rule in Makefile.in */
3331 # FIXME: are all these flags really needed? Document here why. */
3332 GNUSTEP_CFLAGS="-D_REENTRANT -fPIC -fno-strict-aliasing -I${GNUSTEP_SYSTEM_HEADERS} ${GNUSTEP_LOCAL_HEADERS}"
3333 ## Extra CFLAGS applied to src/*.m files.
3334 GNU_OBJC_CFLAGS="$GNU_OBJC_CFLAGS -fgnu-runtime -Wno-import -fconstant-string-class=NSConstantString -DGNUSTEP_BASE_LIBRARY=1 -DGNU_GUI_LIBRARY=1 -DGNU_RUNTIME=1 -DGSWARN -DGSDIAGNOSE"
3339 ### Use session management (-lSM -lICE) if available
3342 if test "${HAVE_X11}" = "yes"; then
3343 AC_CHECK_HEADER(X11/SM/SMlib.h,
3344 [AC_CHECK_LIB(SM, SmcOpenConnection, HAVE_X_SM=yes, , -lICE)])
3346 if test "${HAVE_X_SM}" = "yes"; then
3347 AC_DEFINE(HAVE_X_SM, 1, [Define to 1 if you have the SM library (-lSM).])
3353 ### Use XRandr (-lXrandr) if available
3355 if test "${HAVE_X11}" = "yes"; then
3356 XRANDR_REQUIRED=1.2.2
3357 XRANDR_MODULES="xrandr >= $XRANDR_REQUIRED"
3358 EMACS_CHECK_MODULES([XRANDR], [$XRANDR_MODULES])
3359 if test $HAVE_XRANDR = no; then
3360 # Test old way in case pkg-config doesn't have it (older machines).
3361 # Include Xrender.h by hand to work around bug in older Xrandr.h
3362 # (e.g. RHEL5) and silence (harmless) configure warning (bug#18465).
3363 AC_CHECK_HEADER(X11/extensions/Xrandr.h,
3364 [AC_CHECK_LIB(Xrandr, XRRGetScreenResources, HAVE_XRANDR=yes)],
3365 [], [AC_INCLUDES_DEFAULT
3366 #include <X11/extensions/Xrender.h>])
3367 if test $HAVE_XRANDR = yes; then
3368 XRANDR_LIBS=-lXrandr
3371 if test $HAVE_XRANDR = yes; then
3372 SAVE_CFLAGS="$CFLAGS"
3374 CFLAGS="$XRANDR_CFLAGS $CFLAGS"
3375 LIBS="$XRANDR_LIBS $LIBS"
3376 AC_CHECK_FUNCS(XRRGetOutputPrimary XRRGetScreenResourcesCurrent)
3377 CFLAGS="$SAVE_CFLAGS"
3380 AC_DEFINE(HAVE_XRANDR, 1, [Define to 1 if you have the XRandr extension.])
3383 AC_SUBST(XRANDR_CFLAGS)
3384 AC_SUBST(XRANDR_LIBS)
3386 ### Use Xinerama (-lXinerama) if available
3388 if test "${HAVE_X11}" = "yes"; then
3389 XINERAMA_REQUIRED=1.0.2
3390 XINERAMA_MODULES="xinerama >= $XINERAMA_REQUIRED"
3391 EMACS_CHECK_MODULES([XINERAMA], [$XINERAMA_MODULES])
3392 if test $HAVE_XINERAMA = no; then
3393 # Test old way in case pkg-config doesn't have it (older machines).
3394 AC_CHECK_HEADER(X11/extensions/Xinerama.h,
3395 [AC_CHECK_LIB(Xinerama, XineramaQueryExtension, HAVE_XINERAMA=yes)])
3396 if test $HAVE_XINERAMA = yes; then
3397 XINERAMA_LIBS=-lXinerama
3400 if test $HAVE_XINERAMA = yes; then
3401 AC_DEFINE(HAVE_XINERAMA, 1, [Define to 1 if you have the Xinerama extension.])
3404 AC_SUBST(XINERAMA_CFLAGS)
3405 AC_SUBST(XINERAMA_LIBS)
3407 ### Use Xfixes (-lXfixes) if available
3409 if test "${HAVE_X11}" = "yes"; then
3410 XFIXES_REQUIRED=4.0.0
3411 XFIXES_MODULES="xfixes >= $XFIXES_REQUIRED"
3412 EMACS_CHECK_MODULES([XFIXES], [$XFIXES_MODULES])
3413 if test $HAVE_XFIXES = no; then
3414 # Test old way in case pkg-config doesn't have it (older machines).
3415 AC_CHECK_HEADER(X11/extensions/Xfixes.h,
3416 [AC_CHECK_LIB(Xfixes, XFixesHideCursor, HAVE_XFIXES=yes)])
3417 if test $HAVE_XFIXES = yes; then
3418 XFIXES_LIBS=-lXfixes
3421 if test $HAVE_XFIXES = yes; then
3422 AC_DEFINE(HAVE_XFIXES, 1, [Define to 1 if you have the Xfixes extension.])
3425 AC_SUBST(XFIXES_CFLAGS)
3426 AC_SUBST(XFIXES_LIBS)
3428 ### Use libxml (-lxml2) if available
3429 ### mingw32 doesn't use -lxml2, since it loads the library dynamically.
3431 if test "${with_xml2}" != "no"; then
3432 ### I'm not sure what the version number should be, so I just guessed.
3433 EMACS_CHECK_MODULES([LIBXML2], [libxml-2.0 > 2.6.17])
3434 # Built-in libxml2 on OS X 10.8 lacks libxml-2.0.pc.
3435 if test "${HAVE_LIBXML2}" != "yes" -a "$opsys" = "darwin"; then
3436 SAVE_CPPFLAGS="$CPPFLAGS"
3437 CPPFLAGS="$CPPFLAGS -I$xcsdkdir/usr/include/libxml2"
3438 AC_CHECK_HEADER(libxml/HTMLparser.h,
3439 [AC_CHECK_DECL(HTML_PARSE_RECOVER, HAVE_LIBXML2=yes, ,
3440 [#include <libxml/HTMLparser.h>])])
3441 CPPFLAGS="$SAVE_CPPFLAGS"
3442 if test "${HAVE_LIBXML2}" = "yes"; then
3443 LIBXML2_CFLAGS="-I'$xcsdkdir/usr/include/libxml2'"
3444 LIBXML2_LIBS="-lxml2"
3447 if test "${HAVE_LIBXML2}" = "yes"; then
3448 if test "${opsys}" != "mingw32"; then
3449 AC_CHECK_LIB(xml2, htmlReadMemory, HAVE_LIBXML2=yes, HAVE_LIBXML2=no
3454 if test "${HAVE_LIBXML2}" = "yes"; then
3455 AC_DEFINE(HAVE_LIBXML2, 1, [Define to 1 if you have the libxml library (-lxml2).])
3462 AC_SUBST(LIBXML2_LIBS)
3463 AC_SUBST(LIBXML2_CFLAGS)
3465 # If netdb.h doesn't declare h_errno, we must declare it by hand.
3466 # On MinGW, that is provided by nt/inc/sys/socket.h and w32.c.
3467 if test "${opsys}" = "mingw32"; then
3468 emacs_cv_netdb_declares_h_errno=yes
3470 AC_CACHE_CHECK(whether netdb declares h_errno,
3471 emacs_cv_netdb_declares_h_errno,
3472 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netdb.h>]],
3473 [[return h_errno;]])],
3474 emacs_cv_netdb_declares_h_errno=yes, emacs_cv_netdb_declares_h_errno=no)])
3475 if test $emacs_cv_netdb_declares_h_errno = yes; then
3476 AC_DEFINE(HAVE_H_ERRNO, 1, [Define to 1 if netdb.h declares h_errno.])
3479 # Check for mail-locking functions in a "mail" library. Probably this should
3480 # have the same check as for liblockfile below.
3481 AC_CHECK_LIB(mail, maillock, have_mail=yes, have_mail=no)
3482 if test $have_mail = yes; then
3484 AC_DEFINE(HAVE_LIBMAIL, 1, [Define to 1 if you have the `mail' library (-lmail).])
3487 LIBS="$LIBS_MAIL $LIBS"
3488 AC_CHECK_FUNCS(touchlock)
3493 dnl Debian, at least:
3494 AC_CHECK_LIB(lockfile, maillock, have_lockfile=yes, have_lockfile=no)
3495 if test $have_lockfile = yes; then
3496 LIBS_MAIL=-llockfile
3497 AC_DEFINE(HAVE_LIBLOCKFILE, 1, [Define to 1 if you have the `lockfile' library (-llockfile).])
3499 # If we have the shared liblockfile, assume we must use it for mail
3500 # locking (e.g. Debian). If we couldn't link against liblockfile
3501 # (no liblockfile.a installed), ensure that we don't need to.
3502 dnl This works for files generally, not just executables.
3503 dnl Should we look elsewhere for it? Maybe examine /etc/ld.so.conf?
3504 AC_CHECK_PROG(liblockfile, liblockfile.so, yes, no,
3505 /usr/lib:/lib:/usr/local/lib:$LD_LIBRARY_PATH)
3506 if test $ac_cv_prog_liblockfile = yes; then
3507 AC_MSG_ERROR([Shared liblockfile found but can't link against it.
3508 This probably means that movemail could lose mail.
3509 There may be a `development' package to install containing liblockfile.])
3512 AC_CHECK_HEADERS_ONCE(maillock.h)
3515 ## Define MAIL_USE_FLOCK (or LOCKF) if the mailer uses flock (or lockf) to
3516 ## interlock access to the mail spool. The alternative is a lock file named
3517 ## /usr/spool/mail/$USER.lock.
3520 aix4-2) mail_lock="lockf" ;;
3522 gnu|freebsd|dragonfly|netbsd|openbsd|darwin|irix6-5) mail_lock="flock" ;;
3524 ## On GNU/Linux systems, both methods are used by various mail programs.
3525 ## I assume most people are using newer mailers that have heard of flock.
3526 ## Change this if you need to.
3527 ## Debian contains a patch which says: ``On Debian/GNU/Linux systems,
3528 ## configure gets the right answers, and that means *NOT* using flock.
3529 ## Using flock is guaranteed to be the wrong thing. See Debian Policy
3530 ## for details.'' and then uses `#ifdef DEBIAN'. Unfortunately the
3531 ## Debian maintainer hasn't provided a clean fix for Emacs.
3532 ## movemail.c will use `maillock' when MAILDIR, HAVE_LIBMAIL and
3533 ## HAVE_MAILLOCK_H are defined, so the following appears to be the
3534 ## correct logic. -- fx
3535 ## We must check for HAVE_LIBLOCKFILE too, as movemail does.
3536 ## liblockfile is a Free Software replacement for libmail, used on
3537 ## Debian systems and elsewhere. -rfr.
3540 if test $have_mail = yes || test $have_lockfile = yes; then
3541 test $ac_cv_header_maillock_h = yes && mail_lock=no
3546 mail_lock="none-needed" ;;
3550 case "$mail_lock" in
3551 flock) AC_DEFINE(MAIL_USE_FLOCK, 1, [Define if the mailer uses flock to interlock the mail spool.]) ;;
3553 lockf) AC_DEFINE(MAIL_USE_LOCKF, 1, [Define if the mailer uses lockf to interlock the mail spool.]) ;;
3557 *) BLESSMAIL_TARGET="need-blessmail" ;;
3559 AC_SUBST(BLESSMAIL_TARGET)
3562 LIBS="$LIB_PTHREAD $LIB_MATH $LIBS"
3563 AC_CHECK_FUNCS(accept4 fchdir gethostname \
3564 getrusage get_current_dir_name \
3565 lrand48 random rint \
3566 select getpagesize setlocale newlocale \
3567 getrlimit setrlimit shutdown getaddrinfo \
3568 pthread_sigmask strsignal setitimer \
3569 sendto recvfrom getsockname getpeername getifaddrs freeifaddrs \
3571 getpwent endpwent getgrent endgrent \
3572 cfmakeraw cfsetspeed copysign __executable_start log2)
3575 dnl No need to check for aligned_alloc and posix_memalign if using
3576 dnl gmalloc.o, as it supplies them, unless we're using hybrid_malloc.
3577 dnl Don't use these functions on Darwin as they are incompatible with
3579 if (test -z "$GMALLOC_OBJ" || test "$hybrid_malloc" = yes) \
3580 && test "$opsys" != darwin; then
3581 AC_CHECK_FUNCS([aligned_alloc posix_memalign], [break])
3584 dnl Cannot use AC_CHECK_FUNCS
3585 AC_CACHE_CHECK([for __builtin_unwind_init],
3586 emacs_cv_func___builtin_unwind_init,
3587 [AC_LINK_IFELSE([AC_LANG_PROGRAM([], [__builtin_unwind_init ();])],
3588 emacs_cv_func___builtin_unwind_init=yes,
3589 emacs_cv_func___builtin_unwind_init=no)])
3590 if test $emacs_cv_func___builtin_unwind_init = yes; then
3591 AC_DEFINE(HAVE___BUILTIN_UNWIND_INIT, 1,
3592 [Define to 1 if you have the `__builtin_unwind_init' function.])
3595 AC_CHECK_HEADERS_ONCE(sys/un.h)
3600 AC_CHECK_FUNCS(grantpt)
3602 # PTY-related GNU extensions.
3603 AC_CHECK_FUNCS(getpt posix_openpt)
3605 # Check this now, so that we will NOT find the above functions in ncurses.
3606 # That is because we have not set up to link ncurses in lib-src.
3607 # It's better to believe a function is not available
3608 # than to expect to find it in ncurses.
3609 # Also we need tputs and friends to be able to build at all.
3610 AC_MSG_CHECKING([for library containing tputs])
3611 # Run a test program that contains a call to tputs, a call that is
3612 # never executed. This tests whether a pre-'main' dynamic linker
3613 # works with the library. It's too much trouble to actually call
3614 # tputs in the test program, due to portability hassles. When
3615 # cross-compiling, assume the test program will run if it links.
3616 AC_DEFUN([tputs_link_source], [
3618 [[extern void tputs (const char *, int, int (*)(int));
3619 int main (int argc, char **argv)
3622 tputs (argv[0], 0, 0);
3626 if test "${opsys}" = "mingw32"; then
3629 # Maybe curses should be tried earlier?
3630 # See http://debbugs.gnu.org/cgi/bugreport.cgi?bug=9736#35
3631 for tputs_library in '' tinfo ncurses terminfo termcap curses; do
3633 if test -z "$tputs_library"; then
3637 LIBS_TERMCAP=-l$tputs_library
3639 LIBS="$LIBS_TERMCAP $LIBS"
3641 AC_RUN_IFELSE([tputs_link_source], [], [msg=no],
3642 [AC_LINK_IFELSE([tputs_link_source], [], [msg=no])])
3644 if test "X$msg" != Xno; then
3649 AC_MSG_RESULT([$msg])
3650 if test "X$msg" = Xno; then
3651 AC_MSG_ERROR([The required function `tputs' was not found in any library.
3652 The following libraries were tried (in order):
3653 libtinfo, libncurses, libterminfo, libtermcap, libcurses
3654 Please try installing whichever of these libraries is most appropriate
3655 for your system, together with its header files.
3656 For example, a libncurses-dev(el) or similar package.])
3659 ## Use termcap instead of terminfo?
3660 ## Only true for: freebsd < 40000, ms-w32, msdos, netbsd < 599002500.
3662 ## FIXME? In the cases below where we unconditionally set
3663 ## LIBS_TERMCAP="-lncurses", this overrides LIBS_TERMCAP = -ltinfo,
3664 ## if that was found above to have tputs.
3665 ## Should we use the gnu* logic everywhere?
3667 ## darwin: Prevents crashes when running Emacs in Terminal.app under 10.2.
3668 ## The ncurses library has been moved out of the System framework in
3669 ## Mac OS X 10.2. So if configure detects it, set the command-line
3670 ## option to use it.
3671 darwin) LIBS_TERMCAP="-lncurses" ;;
3673 gnu*) test -z "$LIBS_TERMCAP" && LIBS_TERMCAP="-lncurses" ;;
3676 AC_MSG_CHECKING([whether FreeBSD is new enough to use terminfo])
3677 AC_CACHE_VAL(emacs_cv_freebsd_terminfo,
3678 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <osreldate.h>]],
3679 [[#if __FreeBSD_version < 400000
3682 ]])], emacs_cv_freebsd_terminfo=yes, emacs_cv_freebsd_terminfo=no)])
3684 AC_MSG_RESULT($emacs_cv_freebsd_terminfo)
3686 if test $emacs_cv_freebsd_terminfo = yes; then
3687 LIBS_TERMCAP="-lncurses"
3690 LIBS_TERMCAP="-ltermcap"
3700 if test "x$LIBS_TERMCAP" != "x-lterminfo"; then
3702 LIBS_TERMCAP="-ltermcap"
3706 openbsd | dragonfly) LIBS_TERMCAP="-lncurses" ;;
3708 ## hpux: Make sure we get select from libc rather than from libcurses
3709 ## because libcurses on HPUX 10.10 has a broken version of select.
3710 ## We used to use -lc -lcurses, but this may be cleaner.
3711 ## FIXME? But TERMINFO = yes on hpux (it used to be explicitly
3712 # set that way, now it uses the default). Isn't this a contradiction?
3713 hpux*) LIBS_TERMCAP="-ltermcap" ;;
3717 TERMCAP_OBJ=tparam.o
3718 if test $TERMINFO = yes; then
3719 AC_DEFINE(TERMINFO, 1, [Define to 1 if you use terminfo instead of termcap.])
3720 TERMCAP_OBJ=terminfo.o
3722 if test "X$LIBS_TERMCAP" = "X-lncurses"; then
3723 AC_DEFINE(USE_NCURSES, 1, [Define to 1 if you use ncurses.])
3725 AC_SUBST(LIBS_TERMCAP)
3726 AC_SUBST(TERMCAP_OBJ)
3728 # GNU/Linux-specific timer functions.
3729 AC_CACHE_CHECK([for timerfd interface], [emacs_cv_have_timerfd],
3731 [AC_LANG_PROGRAM([[#include <sys/timerfd.h>
3733 [[timerfd_create (CLOCK_REALTIME,
3734 TFD_CLOEXEC | TFD_NONBLOCK);
3735 timerfd_settime (0, TFD_TIMER_ABSTIME, 0, 0);]])],
3736 [emacs_cv_have_timerfd=yes],
3737 [emacs_cv_have_timerfd=no])])
3738 if test "$emacs_cv_have_timerfd" = yes; then
3739 AC_DEFINE([HAVE_TIMERFD], 1,
3740 [Define to 1 if timerfd functions are supported as in GNU/Linux.])
3743 # Alternate stack for signal handlers.
3744 AC_CACHE_CHECK([whether signals can be handled on alternate stack],
3745 [emacs_cv_alternate_stack],
3747 [AC_LANG_PROGRAM([[#include <signal.h>
3750 struct sigaction sa;
3751 ss.ss_sp = malloc (SIGSTKSZ);
3752 ss.ss_size = SIGSTKSZ;
3753 sa.sa_flags = SA_SIGINFO | SA_ONSTACK;
3754 sigaltstack (&ss, 0);
3755 sigaction (SIGSEGV, &sa, 0);]])],
3756 [emacs_cv_alternate_stack=yes],
3757 [emacs_cv_alternate_stack=no])])
3759 # Do we have res_init, for detecting changes in /etc/resolv.conf?
3760 # On Darwin, res_init appears not to be useful: see bug#562 and
3761 # http://lists.gnu.org/archive/html/emacs-devel/2007-11/msg01467.html
3764 if test $opsys != darwin; then
3766 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3767 #include <arpa/nameser.h>
3768 #include <resolv.h>]],
3769 [[return res_init();]])],
3770 have_res_init=yes, have_res_init=no)
3771 if test "$have_res_init" = no; then
3773 LIBS="$LIBS -lresolv"
3774 AC_MSG_CHECKING(for res_init with -lresolv)
3775 AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <netinet/in.h>
3776 #include <arpa/nameser.h>
3777 #include <resolv.h>]],
3778 [[return res_init();]])],
3779 have_res_init=yes, have_res_init=no)
3780 AC_MSG_RESULT($have_res_init)
3781 if test "$have_res_init" = yes ; then
3787 if test "$have_res_init" = yes; then
3788 AC_DEFINE(HAVE_RES_INIT, 1, [Define to 1 if res_init is available.])
3792 # Do we need the Hesiod library to provide the support routines?
3793 dnl FIXME? Should we be skipping this on Darwin too?
3795 if test "$with_hesiod" != no ; then
3796 # Don't set $LIBS here -- see comments above. FIXME which comments?
3797 AC_CHECK_FUNC(res_send, , [AC_CHECK_FUNC(__res_send, ,
3798 [AC_CHECK_LIB(resolv, res_send, resolv=yes,
3799 [AC_CHECK_LIB(resolv, __res_send, resolv=yes)])])])
3800 if test "$resolv" = yes ; then
3805 AC_CHECK_FUNC(hes_getmailhost, , [AC_CHECK_LIB(hesiod, hes_getmailhost,
3806 hesiod=yes, :, $RESOLVLIB)])
3808 if test x"$hesiod" = xyes; then
3814 # Do we need libresolv (due to res_init or Hesiod)?
3815 if test "$resolv" = yes && test $opsys != darwin; then
3822 # These tell us which Kerberos-related libraries to use.
3829 if test "${with_kerberos}" != no; then
3831 AC_CHECK_LIB(com_err, com_err, have_com_err=yes, have_com_err=no)
3832 if test $have_com_err = yes; then
3833 COM_ERRLIB=-lcom_err
3834 LIBS="$COM_ERRLIB $LIBS"
3836 AC_CHECK_LIB(crypto, mit_des_cbc_encrypt, have_crypto=yes, have_crypto=no)
3837 if test $have_crypto = yes; then
3839 LIBS="$CRYPTOLIB $LIBS"
3841 AC_CHECK_LIB(k5crypto, mit_des_cbc_encrypt, have_k5crypto=yes, have_k5crypto=no)
3842 if test $have_k5crypto = yes; then
3843 CRYPTOLIB=-lk5crypto
3844 LIBS="$CRYPTOLIB $LIBS"
3846 AC_CHECK_LIB(krb5, krb5_init_context, have_krb5=yes, have_krb5=no)
3847 if test $have_krb5=yes; then
3849 LIBS="$KRB5LIB $LIBS"
3851 dnl FIXME Simplify. Does not match 22 logic, thanks to default_off?
3852 if test "${with_kerberos5}" = no; then
3853 AC_CHECK_LIB(des425, des_cbc_encrypt, have_des425=yes, have_des425=no )
3854 if test $have_des425 = yes; then
3856 LIBS="$DESLIB $LIBS"
3858 AC_CHECK_LIB(des, des_cbc_encrypt, have_des=yes, have_des=no)
3859 if test $have_des = yes; then
3861 LIBS="$DESLIB $LIBS"
3864 AC_CHECK_LIB(krb4, krb_get_cred, have_krb4=yes, have_krb4=no)
3865 if test $have_krb4 = yes; then
3867 LIBS="$KRB4LIB $LIBS"
3869 AC_CHECK_LIB(krb, krb_get_cred, have_krb=yes, have_krb=no)
3870 if test $have_krb = yes; then
3872 LIBS="$KRB4LIB $LIBS"
3877 if test "${with_kerberos5}" != no; then
3878 AC_CHECK_HEADERS(krb5.h,
3879 [AC_CHECK_MEMBERS([krb5_error.text, krb5_error.e_text],,,
3880 [#include <krb5.h>])])
3882 AC_CHECK_HEADERS(krb.h,,
3883 [AC_CHECK_HEADERS(kerberosIV/krb.h,,
3884 [AC_CHECK_HEADERS(kerberos/krb.h)])])
3886 AC_CHECK_HEADERS(com_err.h)
3890 AC_SUBST(COM_ERRLIB)
3896 AC_CHECK_HEADERS(valgrind/valgrind.h)
3898 AC_CHECK_FUNCS_ONCE(tzalloc tzset)
3901 AC_CHECK_FUNC(socket, , ok_so_far=no)
3902 if test $ok_so_far = yes; then
3903 AC_CHECK_HEADER(netinet/in.h, , ok_so_far=no)
3905 if test $ok_so_far = yes; then
3906 AC_CHECK_HEADER(arpa/inet.h, , ok_so_far=no)
3908 if test $ok_so_far = yes; then
3909 dnl Fixme: Not used. Should this be HAVE_SOCKETS?
3910 AC_DEFINE(HAVE_INET_SOCKETS, 1,
3911 [Define to 1 if you have inet sockets.])
3916 AC_CHECK_FUNCS(snprintf)
3918 dnl Check for glib. This differs from other library checks in that
3919 dnl Emacs need not link to glib unless some other library is already
3920 dnl linking to glib. Although glib provides no facilities that Emacs
3921 dnl needs for its own purposes, when glib is present Emacs needs to
3922 dnl use primitives like g_main_context_query to avoid clashing with
3923 dnl glib at a low level.
3925 dnl Check this late, since it depends on $GTK_CFLAGS etc.
3929 CFLAGS="$CFLAGS $GTK_CFLAGS $RSVG_CFLAGS $DBUS_CFLAGS $SETTINGS_CFLAGS"
3930 LIBS="$LIBS $GTK_LIBS $RSVG_LIBS $DBUS_LIBS $SETTINGS_LIBS"
3931 CFLAGS="$CFLAGS $GFILENOTIFY_CFLAGS"
3932 LIBS="$LIBS $GFILENOTIFY_LIBS"
3933 AC_MSG_CHECKING([whether GLib is linked in])
3934 AC_LINK_IFELSE([AC_LANG_PROGRAM(
3937 [[g_print ("Hello world");]])],
3940 AC_MSG_RESULT([$links_glib])
3941 if test "${links_glib}" = "yes"; then
3942 AC_DEFINE(HAVE_GLIB, 1, [Define to 1 if GLib is linked in.])
3943 if test "$HAVE_NS" = no;then
3951 dnl Adapted from Haible's version.
3952 AC_CACHE_CHECK([for nl_langinfo and CODESET], emacs_cv_langinfo_codeset,
3953 [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <langinfo.h>]],
3954 [[char* cs = nl_langinfo(CODESET);]])],
3955 emacs_cv_langinfo_codeset=yes,
3956 emacs_cv_langinfo_codeset=no)
3958 if test $emacs_cv_langinfo_codeset = yes; then
3959 AC_DEFINE(HAVE_LANGINFO_CODESET, 1,
3960 [Define if you have <langinfo.h> and nl_langinfo(CODESET).])
3965 dnl Fixme: AC_SYS_POSIX_TERMIOS should probably be used, but it's not clear
3966 dnl how the tty code is related to POSIX and/or other versions of termios.
3967 dnl The following looks like a useful start.
3969 dnl AC_SYS_POSIX_TERMIOS
3970 dnl if test $ac_cv_sys_posix_termios = yes; then
3971 dnl AC_DEFINE(HAVE_TERMIOS, 1, [Define to 1 if you have POSIX-style functions
3972 dnl and macros for terminal control.])
3973 dnl AC_DEFINE(HAVE_TCATTR, 1, [Define to 1 if you have tcgetattr and tcsetattr.])
3976 dnl Turned on June 1996 supposing nobody will mind it.
3977 dnl MinGW emulates passwd database, so this feature doesn't make sense there.
3978 if test "${opsys}" != "mingw32"; then
3979 AC_DEFINE(AMPERSAND_FULL_NAME, 1, [Define to use the convention that &
3980 in the full name stands for the login id.])
3983 dnl Everybody supports this, except MS.
3984 dnl Seems like the kind of thing we should be testing for, though.
3985 ## Note: PTYs are broken on darwin <6. Use at your own risk.
3986 if test "${opsys}" != "mingw32"; then
3987 AC_DEFINE(HAVE_PTYS, 1, [Define if the system supports pty devices.])
3990 dnl Everybody supports this, except MS-DOS.
3991 dnl Seems like the kind of thing we should be testing for, though.
3992 dnl Compare with HAVE_INET_SOCKETS (which is unused...) above.
3993 AC_DEFINE(HAVE_SOCKETS, 1, [Define if the system supports
3994 4.2-compatible sockets.])
3996 AH_TEMPLATE(INTERNAL_TERMINAL, [This is substituted when $TERM is "internal".])
3998 AH_TEMPLATE(NULL_DEVICE, [Name of the file to open to get
3999 a null file, or a data sink.])
4000 if test "${opsys}" = "mingw32"; then
4001 AC_DEFINE(NULL_DEVICE, ["NUL:"])
4003 AC_DEFINE(NULL_DEVICE, ["/dev/null"])
4006 if test "${opsys}" = "mingw32"; then
4011 AC_DEFINE_UNQUOTED(SEPCHAR, ['$SEPCHAR'], [Character that separates PATH elements.])
4012 dnl This is for MinGW, and is used in test/automated/Makefile.in.
4013 dnl The MSYS Bash has heuristics for replacing ':' with ';' when it
4014 dnl decides that a command-line argument to be passed to a MinGW program
4015 dnl is a PATH-style list of directories. But that heuristics plays it
4016 dnl safe, and only does the replacement when it is _absolutely_ sure it
4017 dnl sees a colon-separated list of file names; e.g. ":." is left alone,
4018 dnl which breaks in-tree builds. So we do this manually instead.
4019 dnl Note that we cannot rely on PATH_SEPARATOR, as that one will always
4020 dnl be computed as ':' in MSYS Bash.
4023 dnl Everybody supports this, except MS-DOS.
4024 AC_DEFINE(subprocesses, 1, [Define to enable asynchronous subprocesses.])
4026 AC_DEFINE(USER_FULL_NAME, [pw->pw_gecos], [How to get a user's full name.])
4029 AC_DEFINE(DIRECTORY_SEP, ['/'],
4030 [Character that separates directories in a file name.])
4032 if test "${opsys}" = "mingw32"; then
4033 AC_DEFINE(IS_DEVICE_SEP(_c_), [((_c_) == ':')],
4034 [Returns true if character is a device separator.])
4036 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == '/' || (_c_) == '\\')],
4037 [Returns true if character is a directory separator.])
4039 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_) || IS_DEVICE_SEP(_c_))],
4040 [Returns true if character is any form of separator.])
4042 AC_DEFINE(IS_DEVICE_SEP(_c_), 0,
4043 [Returns true if character is a device separator.])
4045 AC_DEFINE(IS_DIRECTORY_SEP(_c_), [((_c_) == DIRECTORY_SEP)],
4046 [Returns true if character is a directory separator.])
4048 AC_DEFINE(IS_ANY_SEP(_c_), [(IS_DIRECTORY_SEP (_c_))],
4049 [Returns true if character is any form of separator.])
4052 AH_TEMPLATE(NO_EDITRES, [Define if XEditRes should not be used.])
4056 dnl Unfortunately without libXmu we cannot support EditRes.
4057 if test "x$ac_cv_search_XmuConvertStandardSelection" = xno; then
4058 AC_DEFINE(NO_EDITRES, 1)
4063 dnl Assar Westerlund <assar@sics.se> says this is necessary for
4064 dnl HP-UX 10.20, and that it works for HP-UX 0 as well.
4065 AC_DEFINE(NO_EDITRES, 1)
4071 irix6-5 | sol2* | unixware )
4072 dnl Some SVr4s don't define NSIG in sys/signal.h for ANSI environments;
4073 dnl instead, there's a system variable _sys_nsig. Unfortunately, we
4074 dnl need the constant to dimension an array. So wire in the appropriate
4076 AC_DEFINE(NSIG_MINIMUM, 32, [Minimum value of NSIG.])
4080 emacs_broken_SIGIO=no
4083 dnl SIGIO exists, but the feature doesn't work in the way Emacs needs.
4084 dnl See eg <http://article.gmane.org/gmane.os.openbsd.ports/46831>.
4085 hpux* | irix6-5 | openbsd | sol2* | unixware )
4086 emacs_broken_SIGIO=yes
4090 dnl On AIX Emacs uses the gmalloc.c malloc implementation. But given
4091 dnl the way this system works, libc functions that return malloced
4092 dnl memory use the libc malloc implementation. Calling xfree or
4093 dnl xrealloc on the results of such functions results in a crash.
4095 dnl One solution for this could be to define SYSTEM_MALLOC in configure,
4096 dnl but that does not currently work on this system.
4098 dnl It is possible to completely override the malloc implementation on
4099 dnl AIX, but that involves putting the malloc functions in a shared
4100 dnl library and setting the MALLOCTYPE environment variable to point to
4101 dnl that shared library.
4103 dnl Emacs currently calls xrealloc on the results of get_current_dir name,
4104 dnl to avoid a crash just use the Emacs implementation for that function.
4106 dnl FIXME We could change the AC_CHECK_FUNCS call near the start
4107 dnl of this file, so that we do not check for get_current_dir_name
4108 dnl on AIX. But that might be fragile if something else ends
4109 dnl up testing for get_current_dir_name as a dependency.
4110 AC_DEFINE(BROKEN_GET_CURRENT_DIR_NAME, 1, [Define if
4111 get_current_dir_name should not be used.])
4115 dnl Circumvent a bug in FreeBSD. In the following sequence of
4116 dnl writes/reads on a PTY, read(2) returns bogus data:
4118 dnl write(2) 1022 bytes
4119 dnl write(2) 954 bytes, get EAGAIN
4120 dnl read(2) 1024 bytes in process_read_output
4121 dnl read(2) 11 bytes in process_read_output
4123 dnl That is, read(2) returns more bytes than have ever been written
4124 dnl successfully. The 1033 bytes read are the 1022 bytes written
4125 dnl successfully after processing (for example with CRs added if the
4126 dnl terminal is set up that way which it is here). The same bytes will
4127 dnl be seen again in a later read(2), without the CRs.
4128 AC_DEFINE(BROKEN_PTY_READ_AFTER_EAGAIN, 1, [Define on FreeBSD to
4129 work around an issue when reading from a PTY.])
4135 dnl FIXME Can't we test if this exists (eg /proc/$$)?
4136 AC_DEFINE(HAVE_PROCFS, 1, [Define if you have the /proc filesystem.])
4141 darwin | dragonfly | freebsd | netbsd | openbsd )
4142 AC_DEFINE(DONT_REOPEN_PTY, 1, [Define if process.c does not need to
4143 close a pty to make it a controlling terminal (it is already a
4144 controlling terminal of the subprocess, because we did ioctl TIOCSCTTY).])
4148 dnl FIXME Surely we can test for this rather than hard-code it.
4150 netbsd | openbsd) sound_device="/dev/audio" ;;
4151 *) sound_device="/dev/dsp" ;;
4155 AC_DEFINE_UNQUOTED(DEFAULT_SOUND_DEVICE, "$sound_device",
4156 [Name of the default sound device.])
4159 dnl Emacs can read input using SIGIO and buffering characters itself,
4160 dnl or using CBREAK mode and making C-g cause SIGINT.
4161 dnl The choice is controlled by the variable interrupt_input.
4163 dnl Define INTERRUPT_INPUT to make interrupt_input = 1 the default (use SIGIO)
4165 dnl Emacs uses the presence of the USABLE_SIGIO macro
4166 dnl to indicate whether or not signal-driven I/O is possible. It uses
4167 dnl INTERRUPT_INPUT to decide whether to use it by default.
4169 dnl SIGIO can be used only on systems that implement it (4.2 and 4.3).
4170 dnl CBREAK mode has two disadvantages
4171 dnl 1) At least in 4.2, it is impossible to handle the Meta key properly.
4172 dnl I hear that in system V this problem does not exist.
4173 dnl 2) Control-G causes output to be discarded.
4174 dnl I do not know whether this can be fixed in system V.
4176 dnl Another method of doing input is planned but not implemented.
4177 dnl It would have Emacs fork off a separate process
4178 dnl to read the input and send it to the true Emacs process
4181 darwin | gnu-linux | gnu-kfreebsd )
4182 AC_DEFINE(INTERRUPT_INPUT, 1, [Define to read input using SIGIO.])
4187 dnl If the system's imake configuration file defines `NeedWidePrototypes'
4188 dnl as `NO', we must define NARROWPROTO manually. Such a define is
4189 dnl generated in the Makefile generated by `xmkmf'. If we don't define
4190 dnl NARROWPROTO, we will see the wrong function prototypes for X functions
4191 dnl taking float or double parameters.
4193 cygwin|gnu|gnu-linux|gnu-kfreebsd|irix6-5|freebsd|netbsd|openbsd)
4194 AC_DEFINE(NARROWPROTO, 1, [Define if system's imake configuration
4195 file defines `NeedWidePrototypes' as `NO'.])
4200 dnl Used in process.c, this must be a loop, even if it only runs once.
4201 dnl (Except on SGI; see below. Take that, clarity and consistency!)
4202 AH_TEMPLATE(PTY_ITERATION, [How to iterate over PTYs.])
4203 dnl Only used if !PTY_ITERATION. Iterate from FIRST_PTY_LETTER to z,
4204 dnl trying suffixes 0-16.
4205 AH_TEMPLATE(FIRST_PTY_LETTER, [Letter to use in finding device name of
4206 first PTY, if PTYs are supported.])
4207 AH_TEMPLATE(PTY_OPEN, [How to open a PTY, if non-standard.])
4208 AH_TEMPLATE(PTY_NAME_SPRINTF, [How to get the device name of the control
4209 end of a PTY, if non-standard.])
4210 AH_TEMPLATE(PTY_TTY_NAME_SPRINTF, [How to get device name of the tty
4211 end of a PTY, if non-standard.])
4215 AC_DEFINE(PTY_ITERATION, [int c; for (c = 0; !c ; c++)])
4216 dnl You allocate a pty by opening /dev/ptc to get the master side.
4217 dnl To get the name of the slave side, you just ttyname() the master side.
4218 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptc");])
4219 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [strcpy (pty_name, ttyname (fd));])
4223 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4224 dnl multi-line AC_DEFINEs are hard. :(
4225 AC_DEFINE(PTY_OPEN, [ do { int dummy; sigset_t blocked, procmask; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, &procmask); if (-1 == openpty (&fd, &dummy, pty_name, 0, 0)) fd = -1; pthread_sigmask (SIG_SETMASK, &procmask, 0); if (fd >= 0) emacs_close (dummy); } while (false)])
4226 AC_DEFINE(PTY_NAME_SPRINTF, [])
4227 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4230 dnl FIXME? Maybe use same as freebsd - see bug#12040.
4232 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4233 dnl Not used, because PTY_ITERATION is defined.
4234 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4235 dnl Note that openpty may fork via grantpt on Mac OS X 10.4/Darwin 8.
4236 dnl But we don't have to block SIGCHLD because it is blocked in the
4237 dnl implementation of grantpt.
4238 AC_DEFINE(PTY_OPEN, [ do { int slave; if (openpty (&fd, &slave, pty_name, NULL, NULL) == -1) fd = -1; else emacs_close (slave); } while (false)])
4239 AC_DEFINE(PTY_NAME_SPRINTF, [])
4240 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4244 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4247 gnu-linux | gnu-kfreebsd | dragonfly | freebsd | netbsd )
4249 if test "x$ac_cv_func_grantpt" = xyes; then
4250 AC_DEFINE(UNIX98_PTYS, 1, [Define if the system has Unix98 PTYs.])
4251 AC_DEFINE(PTY_ITERATION, [int i; for (i = 0; i < 1; i++)])
4252 dnl Note that grantpt and unlockpt may fork. We must block SIGCHLD
4253 dnl to prevent sigchld_handler from intercepting the child's death.
4254 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptyname = 0; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); if (grantpt (fd) != -1 && unlockpt (fd) != -1) ptyname = ptsname(fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (!ptyname) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4255 dnl if HAVE_POSIX_OPENPT
4256 if test "x$ac_cv_func_posix_openpt" = xyes; then
4257 AC_DEFINE(PTY_OPEN, [do { fd = posix_openpt (O_RDWR | O_CLOEXEC | O_NOCTTY); if (fd < 0 && errno == EINVAL) fd = posix_openpt (O_RDWR | O_NOCTTY); } while (false)])
4258 AC_DEFINE(PTY_NAME_SPRINTF, [])
4260 elif test "x$ac_cv_func_getpt" = xyes; then
4261 AC_DEFINE(PTY_OPEN, [fd = getpt ()])
4262 AC_DEFINE(PTY_NAME_SPRINTF, [])
4264 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4267 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4272 AC_DEFINE(FIRST_PTY_LETTER, ['p'])
4273 AC_DEFINE(PTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/ptym/pty%c%x", c, i);])
4274 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [sprintf (pty_name, "/dev/pty/tty%c%x", c, i);])
4278 dnl It looks like this cannot be right, because it is not a loop.
4279 dnl However, process.c actually does this:
4285 dnl which presumably makes it OK, since irix == sgi (?).
4286 dnl FIXME it seems like this special treatment is unnecessary?
4287 dnl Why can't irix use a single-trip loop like eg cygwin?
4288 AC_DEFINE(PTY_ITERATION, [])
4289 dnl Not used, because PTY_ITERATION is defined.
4290 AC_DEFINE(FIRST_PTY_LETTER, ['q'])
4291 AC_DEFINE(PTY_OPEN, [ { struct sigaction ocstat, cstat; struct stat stb; char * name; sigemptyset(&cstat.sa_mask); cstat.sa_handler = SIG_DFL; cstat.sa_flags = 0; sigaction(SIGCHLD, &cstat, &ocstat); name = _getpty (&fd, O_RDWR | O_NDELAY, 0600, 0); sigaction(SIGCHLD, &ocstat, (struct sigaction *)0); if (name == 0) return -1; if (fd < 0) return -1; if (fstat (fd, &stb) < 0) return -1; strcpy (pty_name, name); }])
4292 dnl No need to get the pty name at all.
4293 AC_DEFINE(PTY_NAME_SPRINTF, [])
4294 dnl No need to use sprintf to get the tty name--we get that from _getpty.
4295 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [])
4299 dnl On SysVr4, grantpt(3) forks a subprocess, so keep sigchld_handler()
4300 dnl from intercepting that death. If any child but grantpt's should die
4301 dnl within, it should be caught after sigrelse(2).
4302 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1 || unlockpt (fd) == -1 || !(ptyname = ptsname (fd))) { emacs_close (fd); return -1; } snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4306 dnl Comments are as per sol2*.
4307 AC_DEFINE(PTY_TTY_NAME_SPRINTF, [{ char *ptsname (int), *ptyname; int grantpt_result; sigset_t blocked; sigemptyset (&blocked); sigaddset (&blocked, SIGCHLD); pthread_sigmask (SIG_BLOCK, &blocked, 0); grantpt_result = grantpt (fd); pthread_sigmask (SIG_UNBLOCK, &blocked, 0); if (grantpt_result == -1) fatal("could not grant slave pty"); if (unlockpt(fd) == -1) fatal("could not unlock slave pty"); if (!(ptyname = ptsname(fd))) fatal ("could not enable slave pty"); snprintf (pty_name, PTY_NAME_SIZE, "%s", ptyname); }])
4314 dnl This change means that we don't loop through allocate_pty too
4315 dnl many times in the (rare) event of a failure.
4316 AC_DEFINE(FIRST_PTY_LETTER, ['z'])
4317 AC_DEFINE(PTY_NAME_SPRINTF, [strcpy (pty_name, "/dev/ptmx");])
4318 dnl Push various streams modules onto a PTY channel. Used in process.c.
4319 AC_DEFINE(SETUP_SLAVE_PTY, [if (ioctl (xforkin, I_PUSH, "ptem") == -1) fatal ("ioctl I_PUSH ptem"); if (ioctl (xforkin, I_PUSH, "ldterm") == -1) fatal ("ioctl I_PUSH ldterm"); if (ioctl (xforkin, I_PUSH, "ttcompat") == -1) fatal ("ioctl I_PUSH ttcompat");], [How to set up a slave PTY, if needed.])
4324 AH_TEMPLATE(SIGNALS_VIA_CHARACTERS, [Make process_send_signal work by
4325 "typing" a signal character on the pty.])
4328 dnl Perry Smith <pedz@ddivt1.austin.ibm.com> says this is correct for AIX.
4329 dnl thomas@mathematik.uni-bremen.de says this is needed for IRIX.
4330 aix4-2 | cygwin | gnu | irix6-5 | dragonfly | freebsd | netbsd | openbsd | darwin )
4331 AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4334 dnl 21 Jun 06: Eric Hanchrow <offby1@blarg.net> says this works.
4335 dnl FIXME Does gnu-kfreebsd have linux/version.h? It seems unlikely...
4336 gnu-linux | gnu-kfreebsd )
4338 AC_MSG_CHECKING([for signals via characters])
4339 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4340 #include <linux/version.h>
4341 #if LINUX_VERSION_CODE < 0x20400
4342 # error "Linux version too old"
4344 ]], [[]])], emacs_signals_via_chars=yes, emacs_signals_via_chars=no)
4346 AC_MSG_RESULT([$emacs_signals_via_chars])
4347 test $emacs_signals_via_chars = yes && AC_DEFINE(SIGNALS_VIA_CHARACTERS, 1)
4352 AH_TEMPLATE(TAB3, [Undocumented.])
4355 darwin) AC_DEFINE(TAB3, OXTABS) ;;
4357 gnu | dragonfly | freebsd | netbsd | openbsd )
4358 AC_DEFINE(TABDLY, OXTABS, [Undocumented.])
4359 AC_DEFINE(TAB3, OXTABS)
4362 gnu-linux | gnu-kfreebsd )
4363 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4367 ]], [[]])], AC_DEFINE(GC_MARK_SECONDARY_STACK(),
4368 [do { extern void *__libc_ia64_register_backing_store_base; __builtin_ia64_flushrs (); mark_memory (__libc_ia64_register_backing_store_base, __builtin_ia64_bsp ());} while (false)],
4369 [Mark a secondary stack, like the register stack on the ia64.]), [])
4373 AC_DEFINE(RUN_TIME_REMAP, 1, [Define if emacs.c needs to call
4374 run_time_remap; for HPUX.])
4379 dnl This won't be used automatically yet. We also need to know, at least,
4380 dnl that the stack is continuous.
4381 AH_TEMPLATE(GC_SETJMP_WORKS, [Define if setjmp is known to save all
4382 registers relevant for conservative garbage collection in the jmp_buf.])
4386 dnl Not all the architectures are tested, but there are Debian packages
4387 dnl for SCM and/or Guile on them, so the technique must work. See also
4388 dnl comments in alloc.c concerning setjmp and gcc.
4389 dnl Fixme: it's probably safe to just use the GCC conditional below.
4390 gnu-linux | gnu-kfreebsd )
4391 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4392 #if defined __i386__ || defined __sparc__ || defined __mc68000__ \
4393 || defined __alpha__ || defined __mips__ || defined __s390__ \
4394 || defined __arm__ || defined __powerpc__ || defined __amd64__ \
4395 || defined __ia64__ || defined __sh__
4398 # error "setjmp not known to work on this arch"
4400 ]], [[]])], AC_DEFINE(GC_SETJMP_WORKS, 1))
4405 if test x$GCC = xyes; then
4406 dnl GC_SETJMP_WORKS is nearly always appropriate for GCC.
4407 AC_DEFINE(GC_SETJMP_WORKS, 1)
4410 dnl irix: Tested on Irix 6.5. SCM worked on earlier versions.
4411 aix* | dragonfly | freebsd | netbsd | openbsd | irix6-5 | sol2* )
4412 AC_DEFINE(GC_SETJMP_WORKS, 1)
4417 dnl In a weird quirk, MS runtime uses _setjmp and longjmp.
4418 AC_CACHE_CHECK([for _setjmp], [emacs_cv_func__setjmp],
4421 [[#include <setjmp.h>
4423 # define _longjmp longjmp
4428 _longjmp (j, 1);]])],
4429 [emacs_cv_func__setjmp=yes],
4430 [emacs_cv_func__setjmp=no])])
4431 if test $emacs_cv_func__setjmp = yes; then
4432 AC_DEFINE([HAVE__SETJMP], 1, [Define to 1 if _setjmp and _longjmp work.])
4435 # We need to preserve signal mask to handle C stack overflows.
4436 AC_CACHE_CHECK([for sigsetjmp], [emacs_cv_func_sigsetjmp],
4439 [[#include <setjmp.h>
4442 if (! sigsetjmp (j, 1))
4443 siglongjmp (j, 1);]])],
4444 [emacs_cv_func_sigsetjmp=yes],
4445 [emacs_cv_func_sigsetjmp=no])])
4446 if test $emacs_cv_func_sigsetjmp = yes; then
4447 AC_DEFINE([HAVE_SIGSETJMP], 1,
4448 [Define to 1 if sigsetjmp and siglongjmp work.])
4451 # We need all of these features to handle C stack overflows.
4452 if test "$ac_cv_header_sys_resource_h" = "yes" -a \
4453 "$ac_cv_func_getrlimit" = "yes" -a \
4454 "$emacs_cv_func_sigsetjmp" = "yes" -a \
4455 "$emacs_cv_alternate_stack" = yes; then
4456 AC_DEFINE([HAVE_STACK_OVERFLOW_HANDLING], 1,
4457 [Define to 1 if C stack overflow can be handled in some cases.])
4462 dnl TIOCGPGRP is broken in SysVr4, so we can't send signals to PTY
4463 dnl subprocesses the usual way. But TIOCSIGNAL does work for PTYs,
4464 dnl and this is all we need.
4465 AC_DEFINE(TIOCSIGSEND, TIOCSIGNAL, [Some platforms redefine this.])
4472 dnl Used in xfaces.c.
4473 AC_DEFINE(XOS_NEEDS_TIME_H, 1, [Compensate for a bug in Xos.h on
4474 some systems, where it requires time.h.])
4479 dnl Define symbols to identify the version of Unix this is.
4480 dnl Define all the symbols that apply correctly.
4481 AH_TEMPLATE(DOS_NT, [Define if the system is MS DOS or MS Windows.])
4482 AH_TEMPLATE(MSDOS, [Define if the system is MS DOS.])
4483 AH_TEMPLATE(USG, [Define if the system is compatible with System III.])
4484 AH_TEMPLATE(USG5_4, [Define if the system is compatible with System V Release 4.])
4489 dnl This symbol should be defined on AIX Version 3 ???????
4490 AC_PREPROC_IFELSE([AC_LANG_PROGRAM([[
4492 # error "_AIX not defined"
4494 ]], [[]])], [], AC_DEFINE(_AIX, [], [Define if the system is AIX.]))
4498 AC_DEFINE(CYGWIN, 1, [Define if the system is Cygwin.])
4502 dnl Not __APPLE__, as this may not be defined on non-OSX Darwin.
4503 dnl Not DARWIN, because Panther and lower CoreFoundation.h use DARWIN to
4504 dnl distinguish OS X from pure Darwin.
4505 AC_DEFINE(DARWIN_OS, [], [Define if the system is Darwin.])
4508 gnu-linux | gnu-kfreebsd )
4510 AC_DEFINE(GNU_LINUX, [], [Define if ths system is compatible with GNU/Linux.])
4515 AC_DEFINE(HPUX, [], [Define if the system is HPUX.])
4520 AC_DEFINE(USG5_4, [])
4521 AC_DEFINE(IRIX6_5, [], [Define if the system is IRIX.])
4525 AC_DEFINE(DOS_NT, [])
4526 AC_DEFINE(WINDOWSNT, 1, [Define if compiling for native MS Windows.])
4527 if test "x$ac_enable_checking" != "x" ; then
4528 AC_DEFINE(EMACSDEBUG, 1, [Define to 1 to enable w32 debug facilities.])
4534 AC_DEFINE(USG5_4, [])
4535 AC_DEFINE(SOLARIS2, [], [Define if the system is Solaris.])
4540 AC_DEFINE(USG5_4, [])
4544 AC_CACHE_CHECK([for usable FIONREAD], [emacs_cv_usable_FIONREAD],
4547 dnl BUILD 9008 - FIONREAD problem still exists in X-Windows.
4548 emacs_cv_usable_FIONREAD=no
4552 emacs_cv_usable_FIONREAD=yes
4557 [AC_LANG_PROGRAM([[#include <sys/types.h>
4558 #include <sys/ioctl.h>
4560 # include <sys/filio.h>
4563 [[int foo = ioctl (0, FIONREAD, &foo);]])],
4564 [emacs_cv_usable_FIONREAD=yes],
4565 [emacs_cv_usable_FIONREAD=no])
4568 if test $emacs_cv_usable_FIONREAD = yes; then
4569 AC_DEFINE([USABLE_FIONREAD], [1], [Define to 1 if FIONREAD is usable.])
4571 if test $emacs_broken_SIGIO = no; then
4572 AC_CACHE_CHECK([for usable SIGIO], [emacs_cv_usable_SIGIO],
4574 [AC_LANG_PROGRAM([[#include <fcntl.h>
4577 [[int foo = SIGIO | F_SETFL | FASYNC;]])],
4578 [emacs_cv_usable_SIGIO=yes],
4579 [emacs_cv_usable_SIGIO=no])],
4580 [emacs_cv_usable_SIGIO=yes],
4581 [emacs_cv_usable_SIGIO=no])
4582 if test $emacs_cv_usable_SIGIO = yes; then
4583 AC_DEFINE([USABLE_SIGIO], [1], [Define to 1 if SIGIO is usable.])
4590 dnl It works to open the pty's tty in the parent (Emacs), then
4591 dnl close and reopen it in the child.
4592 AC_DEFINE(USG_SUBTTY_WORKS, 1, [Define for USG systems where it
4593 works to open a pty's tty in the parent process, then close and
4594 reopen it in the child.])
4598 AC_DEFINE(PREFER_VSUSP, 1, [Define if process_send_signal should
4599 use VSUSP instead of VSWTCH.])
4603 AC_DEFINE(_STRUCTURED_PROC, 1, [Needed for system_process_attributes
4608 # Set up the CFLAGS for real compilation, so we can substitute it.
4609 CFLAGS="$REAL_CFLAGS"
4610 CPPFLAGS="$REAL_CPPFLAGS"
4613 ## Hack to detect a buggy GCC version.
4614 if test "x$GCC" = xyes \
4615 && test x"`$CC --version 2> /dev/null | grep 'gcc.* 4.5.0'`" != x \
4616 && test x"`echo $CFLAGS | grep '\-O@<:@23@:>@'`" != x \
4617 && test x"`echo $CFLAGS | grep '\-fno-optimize-sibling-calls'`" = x; then
4618 AC_MSG_ERROR([GCC 4.5.0 has problems compiling Emacs; see etc/PROBLEMS'.])
4621 version=$PACKAGE_VERSION
4623 copyright="Copyright (C) 2014 Free Software Foundation, Inc."
4624 AC_DEFINE_UNQUOTED(COPYRIGHT, ["$copyright"],
4625 [Short copyright string for this version of Emacs.])
4628 ### Specify what sort of things we'll be editing into Makefile and config.h.
4629 ### Use configuration here uncanonicalized to avoid exceeding size limits.
4631 AC_SUBST(configuration)
4636 AC_SUBST(exec_prefix)
4639 AC_SUBST(sharedstatedir)
4640 AC_SUBST(libexecdir)
4644 AC_SUBST(standardlisppath)
4645 AC_SUBST(locallisppath)
4647 AC_SUBST(x_default_search_path)
4649 AC_SUBST(archlibdir)
4654 ## FIXME? Nothing uses @LD_SWITCH_X_SITE@.
4655 ## src/Makefile.in did add LD_SWITCH_X_SITE (as a cpp define) to the
4656 ## end of LIBX_BASE, but nothing ever set it.
4657 AC_SUBST(LD_SWITCH_X_SITE)
4658 AC_SUBST(C_SWITCH_X_SITE)
4659 AC_SUBST(GNUSTEP_CFLAGS)
4661 ## Used in lwlib/Makefile.in.
4662 AC_SUBST(X_TOOLKIT_TYPE)
4664 AC_SUBST(ns_appbindir)
4665 AC_SUBST(ns_appresdir)
4667 AC_SUBST(GNU_OBJC_CFLAGS)
4668 AC_SUBST(OTHER_FILES)
4670 if test -n "${term_header}"; then
4671 AC_DEFINE_UNQUOTED(TERM_HEADER, "${term_header}",
4672 [Define to the header for the built-in window system.])
4675 AC_DEFINE_UNQUOTED(EMACS_CONFIGURATION, "${canonical}",
4676 [Define to the canonical Emacs configuration name.])
4677 AC_DEFINE_UNQUOTED(EMACS_CONFIG_OPTIONS, "${emacs_config_options}",
4678 [Define to the options passed to configure.])
4679 AH_TEMPLATE(config_opsysfile, [Some platforms that do not use configure
4680 define this to include extra configuration information.])
4684 AC_DEFINE(config_opsysfile, <ms-w32.h>, [])
4691 if test "${HAVE_X_WINDOWS}" = "yes" ; then
4692 AC_DEFINE(HAVE_X_WINDOWS, 1,
4693 [Define to 1 if you want to use the X window system.])
4695 XOBJ="xterm.o xfns.o xselect.o xrdb.o xsmfns.o xsettings.o"
4697 if test "$HAVE_XFT" = "yes"; then
4698 FONT_OBJ="$FONT_OBJ ftfont.o xftfont.o ftxfont.o"
4699 elif test "$HAVE_FREETYPE" = "yes"; then
4700 FONT_OBJ="$FONT_OBJ ftfont.o ftxfont.o"
4710 if test "${USE_X_TOOLKIT}" != "none" ; then
4712 AC_DEFINE(USE_X_TOOLKIT, 1, [Define to 1 if using an X toolkit.])
4713 if test "${USE_X_TOOLKIT}" = "LUCID"; then
4714 AC_DEFINE(USE_LUCID, 1, [Define to 1 if using the Lucid X toolkit.])
4715 elif test "${USE_X_TOOLKIT}" = "MOTIF"; then
4716 AC_DEFINE(USE_MOTIF, 1, [Define to 1 if using the Motif X toolkit.])
4720 ## Paul Abrahams <abrahams at equinox.shaysnet.com> says this is needed.
4721 MOTIF_LIBW="$MOTIF_LIBW -lXpm"
4725 ## Richard Anthony Ryan <ryanr at ellingtn.ftc.nrcs.usda.gov>
4726 ## says -lXimp is needed in UNIX_SV ... 4.2 1.1.2.
4727 MOTIF_LIBW="MOTIF_LIBW -lXimp"
4731 ## olson@mcs.anl.gov says -li18n is needed by -lXm.
4732 MOTIF_LIBW="$MOTIF_LIBW -li18n"
4735 MOTIF_LIBW="$MOTIF_LIBW $LIBXP"
4738 AC_SUBST(WIDGET_OBJ)
4741 case "$USE_X_TOOLKIT" in
4742 MOTIF) TOOLKIT_LIBW="$MOTIF_LIBW" ;;
4743 LUCID) TOOLKIT_LIBW="$LUCID_LIBW" ;;
4744 none) test "x$HAVE_GTK" = "xyes" && TOOLKIT_LIBW="$GTK_LIBS" ;;
4746 AC_SUBST(TOOLKIT_LIBW)
4748 if test "${opsys}" != "mingw32"; then
4749 if test "$USE_X_TOOLKIT" = "none"; then
4750 LIBXT_OTHER="\$(LIBXSM)"
4752 LIBXT_OTHER="\$(LIBXMU) -lXt \$(LIBXTR6) -lXext"
4755 AC_SUBST(LIBXT_OTHER)
4757 if test "${HAVE_X11}" = "yes" ; then
4758 AC_DEFINE(HAVE_X11, 1,
4759 [Define to 1 if you want to use version 11 of X windows.])
4760 LIBX_OTHER="\$(LIBXT) \$(LIBX_EXTRA)"
4764 AC_SUBST(LIBX_OTHER)
4766 if test "$HAVE_GTK" = yes || test "$HAVE_X11" != yes; then
4768 elif test "$USE_X_TOOLKIT" = none; then
4769 LIBXMENU='$(oldXMenudir)/libXMenu11.a'
4771 LIBXMENU='$(lwlibdir)/liblw.a'
4775 AC_CACHE_CHECK([for struct alignment],
4776 [emacs_cv_struct_alignment],
4778 [AC_LANG_PROGRAM([[#include <stddef.h>
4779 struct __attribute__ ((aligned (8))) s { char c; };
4780 struct t { char c; struct s s; };
4781 char verify[offsetof (struct t, s) == 8 ? 1 : -1];
4783 [emacs_cv_struct_alignment=yes],
4784 [emacs_cv_struct_alignment=no])])
4785 if test "$emacs_cv_struct_alignment" = yes; then
4786 AC_DEFINE([HAVE_STRUCT_ATTRIBUTE_ALIGNED], 1,
4787 [Define to 1 if 'struct __attribute__ ((aligned (N)))' aligns the
4788 structure to an N-byte boundary.])
4791 if test "${GNU_MALLOC}" = "yes" ; then
4792 AC_DEFINE(GNU_MALLOC, 1,
4793 [Define to 1 if you want to use the GNU memory allocator.])
4797 if test "${REL_ALLOC}" = "yes" ; then
4798 AC_DEFINE(REL_ALLOC, 1,
4799 [Define REL_ALLOC if you want to use the relocating allocator for
4802 test "$system_malloc" != "yes" && RALLOC_OBJ=ralloc.o
4804 AC_SUBST(RALLOC_OBJ)
4806 if test "$opsys" = "cygwin"; then
4807 CYGWIN_OBJ="sheap.o cygw32.o"
4808 ## Cygwin differs because of its unexec().
4810 POST_ALLOC_OBJ=lastfile.o
4811 elif test "$opsys" = "mingw32"; then
4814 POST_ALLOC_OBJ=lastfile.o
4817 PRE_ALLOC_OBJ=lastfile.o
4820 AC_SUBST(CYGWIN_OBJ)
4821 AC_SUBST(PRE_ALLOC_OBJ)
4822 AC_SUBST(POST_ALLOC_OBJ)
4824 dnl Call this 'FORTIFY_SOUR' so that it sorts before the 'FORTIFY_SOURCE'
4825 dnl verbatim defined above. The tricky name is apropos, as this hack
4826 dnl makes Fortify go sour!
4827 AH_VERBATIM([FORTIFY_SOUR],
4828 [/* Without the following workaround, Emacs runs slowly on OS X 10.8.
4829 The workaround disables some useful run-time checking, so it
4830 should be conditional to the platforms with the performance bug.
4831 Perhaps Apple will fix this some day; also see m4/extern-inline.m4. */
4832 #if defined __APPLE__ && defined __GNUC__
4833 # ifndef _DONT_USE_CTYPE_INLINE_
4834 # define _DONT_USE_CTYPE_INLINE_
4836 # ifndef _FORTIFY_SOURCE
4837 # define _FORTIFY_SOURCE 0
4842 # If user asks to omit features, disable optional features that gnulib
4843 # might otherwise enable.
4844 if test "$with_features" = no && test "$enable_acl" != yes; then
4848 # Configure gnulib. Although this does not affect CFLAGS or LIBS permanently.
4849 # it temporarily reverts them to their pre-pkg-config values,
4850 # because gnulib needs to work with both src (which uses the
4851 # pkg-config stuff) and lib-src (which does not). For example, gnulib
4852 # may need to determine whether LIB_CLOCK_GETTIME should contain -lrt,
4853 # and it therefore needs to run in an environment where LIBS does not
4854 # already contain -lrt merely because 'pkg-config --libs' printed '-lrt'
4855 # for some package unrelated to lib-src.
4858 CFLAGS=$pre_PKG_CONFIG_CFLAGS
4859 LIBS="$LIB_PTHREAD $pre_PKG_CONFIG_LIBS"
4860 gl_ASSERT_NO_GNULIB_POSIXCHECK
4861 gl_ASSERT_NO_GNULIB_TESTS
4866 if test "${opsys}" = "mingw32"; then
4867 CPPFLAGS="$CPPFLAGS -DUSE_CRT_DLL=1 -I \${abs_top_srcdir}/nt/inc"
4868 # Remove unneeded switches from the value of CC that goes to Makefiles
4869 CC=`echo $CC | sed -e "s,$GCC_TEST_OPTIONS,,"`
4873 aix4-2) LD_SWITCH_SYSTEM_TEMACS="-Wl,-bnodelcsect" ;;
4875 cygwin) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000" ;;
4878 ## The -headerpad option tells ld (see man page) to leave room at the
4879 ## end of the header for adding load commands. Needed for dumping.
4880 ## 0x1000 is enough for roughly 52 load commands on the x86_64
4881 ## architecture (where they are 78 bytes each). The actual number of
4882 ## load commands added is not consistent but normally ranges from
4883 ## about 14 to about 34. Setting it high gets us plenty of slop and
4884 ## only costs about 1.5K of wasted binary space.
4885 headerpad_extra=1000
4886 if test "$HAVE_NS" = "yes"; then
4887 libs_nsgui="-framework AppKit"
4888 if test "$NS_IMPL_COCOA" = "yes"; then
4889 libs_nsgui="$libs_nsgui -framework IOKit"
4894 LD_SWITCH_SYSTEM_TEMACS="-fno-pie -prebind $libs_nsgui -Xlinker -headerpad -Xlinker $headerpad_extra"
4896 ## This is here because src/Makefile.in did some extra fiddling around
4897 ## with LD_SWITCH_SYSTEM. It seems cleaner to put this in
4898 ## LD_SWITCH_SYSTEM_TEMACS instead,
4899 test "x$LD_SWITCH_SYSTEM" = "x" && test "x$GCC" != "xyes" && \
4900 LD_SWITCH_SYSTEM_TEMACS="-X $LD_SWITCH_SYSTEM_TEMACS"
4903 ## LD_SWITCH_X_SITE_RPATH is a -rpath option saying where to
4904 ## find X at run-time.
4905 ## When handled by cpp, this was in LD_SWITCH_SYSTEM. However, at the
4906 ## point where configure sourced the s/*.h file, LD_SWITCH_X_SITE_RPATH
4907 ## had not yet been defined and was expanded to null. Hence LD_SWITCH_SYSTEM
4908 ## had different values in configure (in ac_link) and src/Makefile.in.
4909 ## It seems clearer therefore to put this piece in LD_SWITCH_SYSTEM_TEMACS.
4910 gnu*) LD_SWITCH_SYSTEM_TEMACS="\$(LD_SWITCH_X_SITE_RPATH)" ;;
4913 ## Is it any better under MinGW64 to relocate emacs into higher addresses?
4914 case "$canonical" in
4915 x86_64-*-*) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x400000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4916 *) LD_SWITCH_SYSTEM_TEMACS="-Wl,-stack,0x00800000 -Wl,-heap,0x00100000 -Wl,-image-base,0x01000000 -Wl,-entry,__start -Wl,-Map,./temacs.map" ;;
4920 openbsd) LD_SWITCH_SYSTEM_TEMACS='-nopie' ;;
4922 *) LD_SWITCH_SYSTEM_TEMACS= ;;
4925 if test x$ac_enable_profiling != x ; then
4927 *freebsd | gnu-linux) ;;
4928 *) LD_SWITCH_SYSTEM_TEMACS="$LD_SWITCH_SYSTEM_TEMACS -pg" ;;
4932 LD_SWITCH_SYSTEM_TEMACS="$LDFLAGS_NOCOMBRELOC $LD_SWITCH_SYSTEM_TEMACS"
4934 AC_SUBST(LD_SWITCH_SYSTEM_TEMACS)
4936 ## Common for all window systems
4937 if test "$window_system" != "none"; then
4938 AC_DEFINE(HAVE_WINDOW_SYSTEM, 1, [Define if you have a window system.])
4939 AC_DEFINE(POLL_FOR_INPUT, 1, [Define if you poll periodically to detect C-g.])
4940 WINDOW_SYSTEM_OBJ="fontset.o fringe.o image.o"
4943 AC_SUBST(WINDOW_SYSTEM_OBJ)
4945 AH_TOP([/* GNU Emacs site configuration template file.
4947 Copyright (C) 1988, 1993-1994, 1999-2002, 2004-2014
4948 Free Software Foundation, Inc.
4950 This file is part of GNU Emacs.
4952 GNU Emacs is free software: you can redistribute it and/or modify
4953 it under the terms of the GNU General Public License as published by
4954 the Free Software Foundation, either version 3 of the License, or
4955 (at your option) any later version.
4957 GNU Emacs is distributed in the hope that it will be useful,
4958 but WITHOUT ANY WARRANTY; without even the implied warranty of
4959 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
4960 GNU General Public License for more details.
4962 You should have received a copy of the GNU General Public License
4963 along with GNU Emacs. If not, see <http://www.gnu.org/licenses/>. */
4966 /* No code in Emacs #includes config.h twice, but some bits of code
4967 intended to work with other packages as well (like gmalloc.c)
4968 think they can include it as many times as they like. */
4969 #ifndef EMACS_CONFIG_H
4970 #define EMACS_CONFIG_H
4973 AH_BOTTOM([#include <conf_post.h>
4975 #endif /* EMACS_CONFIG_H */
4984 #### Report on what we decided to do.
4985 #### Report GTK as a toolkit, even if it doesn't use Xt.
4986 #### It makes printing result more understandable as using GTK sets
4987 #### toolkit_scroll_bars to yes by default.
4988 if test "${HAVE_GTK}" = "yes"; then
4989 USE_X_TOOLKIT="$USE_GTK_TOOLKIT"
4992 if test $USE_ACL -ne 0; then
4993 ACL_SUMMARY="yes $LIB_ACL"
4999 Configured for \`${canonical}'.
5001 Where should the build process find the source code? ${srcdir}
5002 What compiler should emacs be built with? ${CC} ${CFLAGS}
5003 Should Emacs use the GNU version of malloc? ${GNU_MALLOC}${GNU_MALLOC_reason}
5004 Should Emacs use a relocating allocator for buffers? ${REL_ALLOC}
5005 Should Emacs use mmap(2) for buffer allocation? $use_mmap_for_buffers
5006 What window system should Emacs use? ${window_system}
5007 What toolkit should Emacs use? ${USE_X_TOOLKIT}"
5009 if test -n "${x_includes}"; then
5010 echo " Where do we find X Windows header files? ${x_includes}"
5012 echo " Where do we find X Windows header files? Standard dirs"
5014 if test -n "${x_libraries}"; then
5015 echo " Where do we find X Windows libraries? ${x_libraries}"
5017 echo " Where do we find X Windows libraries? Standard dirs"
5021 emacs_config_features=
5022 for opt in XAW3D XPM JPEG TIFF GIF PNG RSVG IMAGEMAGICK SOUND GPM DBUS \
5023 GCONF GSETTINGS NOTIFY ACL LIBSELINUX GNUTLS LIBXML2 FREETYPE M17N_FLT \
5027 NOTIFY|ACL) eval val=\${${opt}_SUMMARY} ;;
5028 *) eval val=\${HAVE_$opt} ;;
5030 test x"$val" = xno && continue
5031 AS_VAR_APPEND([emacs_config_features], ["$optsep$opt"])
5034 AC_DEFINE_UNQUOTED(EMACS_CONFIG_FEATURES, "${emacs_config_features}",
5035 [Summary of some of the main features enabled by configure.])
5037 echo " Does Emacs use -lXaw3d? ${HAVE_XAW3D}"
5038 echo " Does Emacs use -lXpm? ${HAVE_XPM}"
5039 echo " Does Emacs use -ljpeg? ${HAVE_JPEG}"
5040 echo " Does Emacs use -ltiff? ${HAVE_TIFF}"
5041 echo " Does Emacs use a gif library? ${HAVE_GIF} $LIBGIF"
5042 echo " Does Emacs use a png library? ${HAVE_PNG} $LIBPNG"
5043 echo " Does Emacs use -lrsvg-2? ${HAVE_RSVG}"
5044 echo " Does Emacs use imagemagick? ${HAVE_IMAGEMAGICK}"
5046 echo " Does Emacs support sound? ${HAVE_SOUND}"
5048 echo " Does Emacs use -lgpm? ${HAVE_GPM}"
5049 echo " Does Emacs use -ldbus? ${HAVE_DBUS}"
5050 echo " Does Emacs use -lgconf? ${HAVE_GCONF}"
5051 echo " Does Emacs use GSettings? ${HAVE_GSETTINGS}"
5052 echo " Does Emacs use a file notification library? ${NOTIFY_SUMMARY}"
5053 echo " Does Emacs use access control lists? ${ACL_SUMMARY}"
5054 echo " Does Emacs use -lselinux? ${HAVE_LIBSELINUX}"
5055 echo " Does Emacs use -lgnutls? ${HAVE_GNUTLS}"
5056 echo " Does Emacs use -lxml2? ${HAVE_LIBXML2}"
5058 echo " Does Emacs use -lfreetype? ${HAVE_FREETYPE}"
5059 echo " Does Emacs use -lm17n-flt? ${HAVE_M17N_FLT}"
5060 echo " Does Emacs use -lotf? ${HAVE_LIBOTF}"
5061 echo " Does Emacs use -lxft? ${HAVE_XFT}"
5062 echo " Does Emacs directly use zlib? ${HAVE_ZLIB}"
5064 echo " Does Emacs use toolkit scroll bars? ${USE_TOOLKIT_SCROLL_BARS}"
5067 if test -n "${EMACSDATA}"; then
5068 echo " Environment variable EMACSDATA set to: $EMACSDATA"
5070 if test -n "${EMACSDOC}"; then
5071 echo " Environment variable EMACSDOC set to: $EMACSDOC"
5076 if test "$HAVE_NS" = "yes"; then
5078 echo "You must run \"${MAKE-make} install\" in order to test the built application.
5079 The installed application will go to nextstep/Emacs.app and can be
5080 run or moved from there."
5081 if test "$EN_NS_SELF_CONTAINED" = "yes"; then
5082 echo "The application will be fully self-contained."
5084 echo "The lisp resources for the application will be installed under ${prefix}.
5085 You may need to run \"${MAKE-make} install\" with sudo. The application will fail
5086 to run if these resources are not installed."
5091 if test "${opsys}" = "cygwin"; then
5093 1.5.*) AC_MSG_WARN([[building Emacs on Cygwin 1.5 is not supported.]])
5099 # Remove any trailing slashes in these variables.
5100 [test "${prefix}" != NONE &&
5101 prefix=`echo "${prefix}" | sed 's,\([^/]\)/*$,\1,'`
5102 test "${exec_prefix}" != NONE &&
5103 exec_prefix=`echo "${exec_prefix}" | sed 's,\([^/]\)/*$,\1,'`]
5105 if test "$HAVE_NS" = "yes"; then
5106 if test "$NS_IMPL_GNUSTEP" = yes; then
5107 AC_CONFIG_FILES([nextstep/GNUstep/Emacs.base/Resources/Info-gnustep.plist:nextstep/templates/Info-gnustep.plist.in \
5108 nextstep/GNUstep/Emacs.base/Resources/Emacs.desktop:nextstep/templates/Emacs.desktop.in])
5109 ns_check_file=Resources/Info-gnustep.plist
5111 AC_CONFIG_FILES([nextstep/Cocoa/Emacs.base/Contents/Info.plist:nextstep/templates/Info.plist.in \
5112 nextstep/Cocoa/Emacs.base/Contents/Resources/English.lproj/InfoPlist.strings:nextstep/templates/InfoPlist.strings.in])
5113 ns_check_file=Contents/Info.plist
5115 AC_SUBST(ns_check_file)
5118 dnl Obviously there is duplication here wrt $SUBDIR_MAKEFILES.
5119 dnl You _can_ use that variable in AC_CONFIG_FILES, so long as any directory
5120 dnl using automake (ie lib/) is explicitly listed and not "hidden" in a variable
5121 dnl (else you get "no `Makefile.am' found for any configure output").
5122 dnl This will work, but you get a config.status that is not quite right
5123 dnl (see http://lists.gnu.org/archive/html/bug-autoconf/2008-08/msg00028.html).
5124 dnl That doesn't have any obvious consequences for Emacs, but on the whole
5125 dnl it seems better to just live with the duplication.
5126 SUBDIR_MAKEFILES="lib/Makefile lib-src/Makefile oldXMenu/Makefile doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile leim/Makefile nextstep/Makefile nt/Makefile"
5128 AC_CONFIG_FILES([Makefile lib/Makefile lib-src/Makefile oldXMenu/Makefile \
5129 doc/emacs/Makefile doc/misc/Makefile doc/lispintro/Makefile \
5130 doc/lispref/Makefile src/Makefile lwlib/Makefile lisp/Makefile \
5131 leim/Makefile nextstep/Makefile nt/Makefile])
5133 dnl test/ is not present in release tarfiles.
5134 opt_makefile=test/automated/Makefile
5136 if test -f "$srcdir/$opt_makefile.in"; then
5137 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES $opt_makefile"
5138 dnl Again, it's best not to use a variable. Though you can add
5139 dnl ", [], [opt_makefile='$opt_makefile']" and it should work.
5140 AC_CONFIG_FILES([test/automated/Makefile])
5144 dnl The admin/ directory used to be excluded from tarfiles.
5145 if test -d $srcdir/admin; then
5146 SUBDIR_MAKEFILES="$SUBDIR_MAKEFILES admin/unidata/Makefile admin/grammars/Makefile"
5147 AC_CONFIG_FILES([admin/unidata/Makefile])
5148 AC_CONFIG_FILES([admin/grammars/Makefile])
5152 SUBDIR_MAKEFILES_IN=`echo " ${SUBDIR_MAKEFILES}" | sed -e 's| | $(srcdir)/|g' -e 's|Makefile|Makefile.in|g'`
5154 AC_SUBST(SUBDIR_MAKEFILES_IN)
5156 dnl You might wonder (I did) why epaths.h is generated by running make,
5157 dnl rather than just letting configure generate it from epaths.in.
5158 dnl One reason is that the various paths are not fully expanded (see above);
5159 dnl eg gamedir=${prefix}/var/games/emacs.
5160 dnl Secondly, the GNU Coding standards require that one should be able
5161 dnl to run `make prefix=/some/where/else' and override the values set
5162 dnl by configure. This also explains the `move-if-change' test and
5163 dnl the use of force in the `epaths-force' rule in Makefile.in.
5164 AC_CONFIG_COMMANDS([src/epaths.h], [
5165 if test "${opsys}" = "mingw32"; then
5166 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force-w32
5168 ${MAKE-make} MAKEFILE_NAME=do-not-make-Makefile epaths-force
5169 fi || AC_MSG_ERROR(['src/epaths.h' could not be made.])
5170 ], [GCC="$GCC" CPPFLAGS="$CPPFLAGS" opsys="$opsys"])
5172 dnl NB we have to cheat and use the ac_... version because abs_top_srcdir
5173 dnl is not yet set, sigh. Or we could use ../$srcdir/src/.gdbinit,
5175 AC_CONFIG_COMMANDS([src/.gdbinit], [
5176 if test ! -f src/.gdbinit && test -f "$srcdir/src/.gdbinit"; then
5177 echo "source $ac_abs_top_srcdir/src/.gdbinit" > src/.gdbinit
5183 test "$MAKE" = make || AC_MSG_NOTICE([Now you can run '$MAKE'.])